Kinetic energy of object is an energy which is possessed due to motion.
Examples of kinetic energy,
Before a football has been struck shows zero kinetic energy as its velocity is zero.
When an shooting star falls at an lighting speed, it has a huge amount of kinetic energy.
The formula for kinetic energy is
KE = ½ mv²
The SI unit of kinetic energy is Joule,which is precisely 1kg.m².
If we say that the particle speeds increases by a factor N, then the mass is not changing and we keep the mass constant.
The increase in speed is by the factor of 4 as given in the question.
KE = v²
As mass is constant
KE = (4N)²
KE = 16N
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how is water drawn from a large tank to a low lying tank using a rubber tube. explain
Water is drawn from a large tank to a low-lying tank using a rubber tube by suc-king on the end of the rubber tube below the tank, thus, creating a low-pressure area at the end of the tube. The pressure difference between the ends of the robber tube will cause water to be forced out of the tube by atmospheric pressure.
What is the process of siphoning water?The process of siphoning water is the process by which the end of a tube or siphon is suc-ked so as to reduce the air pressure there causing water to rush into and out of the siphon at the lower pressure end.
Siphoning is employed when water is drawn from a large tank to a low-lying tank using a rubber tube
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Which of the following physical activities is the most convenient exercise for you? A. Reading Books B. Singing C. Dancing D. Walking
The most convenient exercise amongst the options is walking.
All the other exercise are also convenient. Reading books is an activity which can be carried out anywhere. It is also a leisure activity which enhances the mental ability. we can carry out book reading while doing walking too.
Singing is an activity which strengthens your muscles of the windpipes. It helps to reduce stress, boosts immunity, improves function of lungs, enhances memory, improves mental health and cope up with physical and emotional stress. Dancing relieves lot of stress and improves the overall physical and mental ability in all forms. Walking is considered to be the best and most convenient as it helps to digest food, releases muscle contraction and strengthens muscles.
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The most convenient exercise for you amongst the four given options is walking.
All the other exercise are also convenient. Reading books is an activity which can be carried out anywhere. It is also a leisure activity which enhances the mental ability. we can carry out book reading while doing walking too.
Singing is an activity which strengthens your muscles of the windpipes. It helps to reduce stress, boosts immunity, improves function of lungs, enhances memory, improves mental health and cope up with physical and emotional stress. Dancing relieves lot of stress and improves the overall physical and mental ability in all forms. Walking is considered to be the best and most convenient as it helps to digest food, releases muscle contraction and strengthens muscles.
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Which type of mirror can form a real image?
Concave mirror forms real images.
Virtual images are formed in Plane mirror and convex mirrors. Concave mirrors can form real images. Real image are basically visible on a screen. Real images are produced by projectors. 'Intersection of the rays' causes the formation of the real images and the virtual images are formally basically by 'diverging rays'. A concave mirror is also called as the converging mirror. It has a surface which is reflecting that is 'recessed inward'. Concave mirrors commonly 'inward the reflected light to one focal point'. Concave mirrors are commonly utilized to 'focus light'. If a screen is placed in the plane of a real image the image will generally become visible on the screen.
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A mirror that can form a real image is said to be a concave mirror.
Virtual images are formed in plane mirror and convex mirrors. Concave mirrors can form real images. Real image are basically visible on a screen. Real images are produced by projectors. Intersection of the rays causes the formation of the real images and the virtual images are formally basically by diverging rays.
A concave mirror is also called as the converging mirror. It features a reflective surface that is recessed inward. Commonly, concave mirrors focus the reflected light at one focal point inside. Mirrors with concave surfaces are commonly used to focus light. An actual image will typically appear on a screen if it is positioned in the plane of the real image.
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It is diffraction that limits the ________ of a telescope of a given objective diameter.A) apertureB) light graspC) resolutionD) magnificationE) interference
It is diffraction that limits the resolution of a telescope of a given objective diameter
Diffraction can be defined as spreading of waves in the presence of obstacles
The resolving power of a telescope can be calculated by the formula,
resolving power = 11.25 seconds of arc/ d,
When we use a telescope the very close objects such as stars or galaxies very small angles on the telescope. To determine the resolution of them on the telescope we need telescopes which have large aperture and therefore we can use resolving power here.
Thus, higher the diameter between objects, the better is the resolution of telescope.
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in a typical star schema, each dimension record is related to thousands of _____ records.
In a typical star schema, each dimension record is related to thousands of facts records.
Star schema is explicit data warehouse scheme.
It is known by the name of star schema because it has a diagram like a star and it is a schema where the centre of the star can have one fact table and then have a number of associated dimension tables.
Star schema is beneficial for fast calculations and easy works. It can help us tell the total item sold and the gains.
The examples of data in star schema is sales price, sale quantity, distant, weight, speed and weight measurements .
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A force is a vector quantity because it has both:
A. action and reaction counterparts.
B. magnitude and direction.
C. magnitude and action
D. mass and acceleration.
B. magnitude and direction.
Why does force have a direction and magnitude?When two forces of equal size are working in opposite directions—one in the east and one in the west—the results of the two pressures are not the same.Therefore, the magnitude and direction should be provided in order to accurately characterize a force.
What forces are there, and in what direction?We can define force as that of the push or pull on an item with a certain magnitude and direction as we know that what a push or a pull indeed has magnitude and direction (hence, it is vector quantity).
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What is the mass-to-light ratio of a 1.1 Msun white dwarf luminosity 0.001 Lsun? Here Msun is the mass of the Sun, and Lsun is the Sun's luminosity.
the mass-to-light ratio of a 1.1 Msun white dwarf luminosity 0.001 Lsun is [tex]\frac{M_{ws} }{L_{ws} } =1100 Y_{o}=5.6\times 10^{6}[/tex]kg/watt
A light-emitting object's radiant power, which is measured in absolute terms as luminosity, is the electromagnetic power that it radiates out over time.. The total quantity of electromagnetic energy released by a star, galaxy, or other celestial object in a given amount of time is measured as luminosity in astronomy.
Luminosity is expressed in joules per second, or watts, in SI units. Values for luminosity in astronomy are frequently expressed in terms of the luminosity of the Sun. The absolute bolometric magnitude (Mbol) of an object is a logarithmic measure of its total energy emission rate, whereas the absolute magnitude is a logarithmic measure of the luminosity within a given wavelength range or filter band. Luminosity can also be expressed in terms of the astronomical magnitude system.
Mass of white dwarf [tex]M_{ws}[/tex]=1:1
Where msun is the mass of sun
and luminosity of white dwarf [tex]L_{ws}[/tex]=0.001
where Lsun is the luminosity of the sun
mass to light ratio=[tex]\frac{M}{L}[/tex]
for sun, [tex]\frac{Msun}{Lsun}[/tex]=[tex]Y_{o}[/tex]= [tex]\frac{1.989\times 10^{30}kg }{3.867\times 10^{26} watt}[/tex]
[tex]\frac{Msun}{Lsun}[/tex]=[tex]Y_{o}[/tex]= 5133kg/watts
Hence, [tex]\frac{M_{ws} }{L_{ws} } =\frac{1.1M_{sun} }{0.001L_{sun}} =1100\frac{M_{sun} }{L_{sun}}[/tex]
, [tex]\frac{M_{ws} }{L_{ws} } =1100Y_{o}[/tex]
, [tex]\f{M_{ws} }=1100\times5133[/tex]kg/watt
[tex]L_{sun}=5.6\times 10^{6}[/tex] kg/watt
Hence, [tex]\frac{M_{ws} }{L_{ws} } =1100 Y_{o}=5.6\times 10^{6}[/tex]kg/watt
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what do you think motion and chemical reactions have in common
The common features of motion and chemical reaction are the movement of particles and the presence of kinetic energy.
What are motion and chemical reaction?Motion is the phenomenon in which an object changes its position concerning other objects. Motion is described in terms of displacement, distance, velocity, acceleration, and speed.
Chemical reactions occur when chemical bonds are formed between atoms. The substances that take part in a chemical reaction are known as the reactants whereas the substances that are produced at the end of the reaction are called the products.
So we can conclude that the movement of particles and the presence of kinetic energy are the common characteristics of motion and chemical reaction.
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Practice problems 3. When the Moon is directly overhead at sunset, the force by Earth on the Moon, FEM, is essentially at 90 ° to the force by the Sun on the Moon, FSM, as shown below. Given thatFEM 1.98 1020 N and FSM= 4.36 × 1020 N, all other forces on the Moon are negligible, and the mass of the Moon is 7.35 × 1022 kg, determine the magnitude of the Moon's acceleration. FEM = Moon F SM
The magnitude of the Moon's acceleration is 0.0065 m/s².
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).
The force by Earth on the Moon, [tex]F_{EM[/tex] = 1.98 ×10²⁰N
The force by the Sun on the Moon, [tex]F_{SM[/tex] = 4.36 ×10²⁰N
As they are acting at 90°, the magnitude of net force =
√{(1.98×10²⁰)²+(4.36×10²⁰)²} ×10²⁰N.
= 4.788 ×10²⁰ N.
The mass of the Moon is 7.35 × 10²² kg.
Hence, the magnitude of the Moon's acceleration = 4.788 ×10²⁰ N/ 7.35 × 10²² kg.
= 0.0065 m/s²
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Compared to the filament thickness of a 60-W light bulb,the filament of a 100-W light bulb will be
A)thinner.
B)thicker.
C)the same.
The filament of a 100-W light bulb will be thicker compared to the filament thickness of a 60-W light bulb.
The filament of a light bulb is directly proportional to the electrical power passing through it. In other words, the thicker the filament, the less electrical power is needed to heat it to the point of incandescence, and the less intense the light will be.
So, the filament of a 100-W light bulb will be thicker than the filament of a 60-W light bulb, because it needs less electrical power to produce the same amount of light. This is due to the fact that the 100-W bulb filament is designed to withstand higher temperatures than the 60-W bulb filament in order to emit the same amount of light.
It's worth noting that the thickness of the filament doesn't only depend on the power of the bulb but also on the kind of bulb, the material of the filament and the temperature they are designed to operate at.
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the spheres at points x and y have masses in the same ratio as the magnitudes of their charges. the isolines of gravitational potential for the spheres have shapes similar to those of the isolines shown. explain why the two sets of isolines have similar shapes.
Both spheres would gravitationally attract a third sphere just like two charges of the same sign would attract a third charge of the opposite sign.
What are spheres?A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It has surface area and volume based on its radius.
How is a sphere formed?A sphere can be constructed as the surface formed by rotating a circle about any of its diameters; this is essentially the traditional definition of a sphere as given in Euclid's Elements. Since a circle is a special type of ellipse, a sphere is a special type of ellipsoid of revolution.
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find a point p=(x0,y0,z0) where f⃗ is parallel to l.
We can substitute the values of the direction vector of the line into the equations of the vector function and find the value of x0,y0 and z0.
To find a point p = (x0, y0, z0) where a vector function f is parallel to a given line l, we need to find a point where the direction of the vector function f is the same as the direction of the line l.
A line can be parameterized as:
l(t) = <x0, y0, z0> + t<a, b, c>
where (x0, y0, z0) is a point on the line, <a, b, c> is the direction vector and t is a scalar parameter.
A vector function can be represented as:
f (x, y, z) = <P(x, y, z), Q(x, y, z), R(x, y, z)>
The direction vector of a vector function is the vector whose entries are the partial derivatives of the function with respect to x, y and z.
The vector function f is parallel to the line l if the direction vector of the function is equal to the direction vector of the line.
So, we can set the direction vector of the vector function equal to the direction vector of the line:
<Px,Qy,Rz> = <a,b,c>
Now we can substitute the values of the direction vector of the line into the equations of the vector function and find the value of x0,y0 and z0.
It's worth noting that if the vector function is not differentiable, this method can not be applied and if it's not possible to find such a point.
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HELP PLEASEEEEEEEEEEEE
Answer:
Electrical energy is transferred from the wall socket to the computer. Electrical energy is transformed to sound and light energy when the computer is turned on. Electrical energy is transformed to heat energy when the computer stays on.
A 110 meters long train crosses a pole in 12 seconds. What is the speed of the train in km/hr?
The speed of the train that is 110 meters long and crosses a pole in 12 seconds is 36.67km/hr.
How to calculate speed?Speed is the rate of motion or action, specifically the magnitude of the velocity or the rate of distance traversed in a given time.
The speed of a moving object can be calculated by dividing the distance moved by the time taken as follows:
Speed = distance/time
According to this question, a 110 meters long train crosses a pole in 12 seconds.
110metres = 0.110kilometers
12 seconds = 0.00333333 hours
Speed = 0.110km ÷ 0.003hr
Speed = 36.67km/hr
Therefore, 36.67km/hr is the speed of the train
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The diameter of the Sun is 1.39 million kilometres and the Earth is 8.3 light minutes far away.
Proxima Centauri is the nearest star - it has a distance of 4.24 light years to our Sun.
(a) How long does it take to travel to Proxima Centauri with
(i) an airplane (920 km/h) or
(ii) with the Voyager 1 space probe (17 km/s).
(b) Let the Sun have the size of a tennis ball (diameter: 6.7 cm): How far away is the Earth and
how far away is Proxima Centauri on this scale?
(a,i) It will take 5.26 x 10^17 years with airplane. (a,ii) It will take 8.04 x 10^9 years with the Voyager, (b) Proxima Centauri would be located at a distance of 2.55 cm.
(a) (i) To travel to Proxima Centauri with an airplane, you would need to travel a distance of 4.24 light years. Since the speed of an airplane is 920 km/h, it would take:
4.24 light years * (9.461 x 10^15 km/light year) / (920 km/h) = 4.55 x 10^19 hours or approximately 5.26 x 10^17 years
(ii) To travel to Proxima Centauri with the Voyager 1 space probe, you would also need to travel a distance of 4.24 light years. Since the speed of the Voyager 1 space probe is 17 km/s, it would take:
4.24 light years * (9.461 x 10^15 km/light year) / (17 km/s) = 2.50 x 10^16 seconds or approximately 8.04 x 10^9 years.
(b) If the Sun has the size of a tennis ball (diameter: 6.7 cm), the Earth would be located at a distance of:
8.3 light minutes * (9.461 x 10^15 km/light year) / (6.7 cm/149597870700 km) = 0.0005 cm
Proxima Centauri would be located at a distance of:
4.24 light years * (9.461 x 10^15 km/light year) / (6.7 cm/149597870700 km) = 2.55 cm
So on this scale, the Earth would be located 0.0005 cm away from the tennis ball-sized Sun and Proxima Centauri would be located 2.55 cm away from it.
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What type of object sinks in water?
When an object is placed in water, it sinks if it is denser than water, and it floats if it is denser than water.
A sink is a bowl-shaped plumbing fixture that is used for hand washing, dishwashing, and other tasks. Sinks have a tap (faucet) that provides hot and cold water, as well as a spray feature for faster rinsing. They also have a drain to remove used water, which may have a strainer and/or a shut-off device, as well as an overflow prevention device. Sinks may also include a soap dispenser. Many sinks are installed next to or inside a counter, particularly in kitchens.
When a sink becomes clogged, most people will use a chemical drain cleaner or a plunger to remove the clog, but most professional plumbers will use a drain auger (also known as a "plumber's snake") to remove the clog.
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Elements become radioactive when the repulsive electrostatic force
overcomes the strong nuclear force.
A. True
B. False
Elements become radioactive when the repulsive electrostatic force overcomes the strong nuclear force. This is false statement.
What is radioactivity?The process through which an unstable atomic nucleus loses energy through radiation is known as radioactive decay, also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration. A substance that has unstable nuclei is regarded as radioactive.
Alpha decay, beta decay, and gamma decay are three of the most frequent kinds of decay, and they all entail the emission of one or more particles. Beta decay is a result of the weak force, while the nuclear force and electromagnetism are in charge of the other two mechanisms.
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Why did the Aral Sea begin to dry up?
A: the fall of the Soviet Union ended
conservation efforts
B: lack of industry in Russia
C: lack of water flow due to irrigation
D: lack of agriculture in Central Asia
Answer:
C: lack of water flow due to irrigation
Explanation:
I remember learning this in class. It dried up because of poor precipitation, so I say the answer is C.
Jess dug a hole 7. 3 inches deep on tuesday. After he dug on wednesday, the hole was 9. 7 inches deep. What distance did jess dig on wednesday?.
Jess dug 2.4 inches distance on Wednesday, depending on the initial and final distance.
The distance dug on Wednesday can be calculated by the following formula:
Distance dug by Jess on Wednesday = Total distance on Wednesday - Distance of hole on Tuesday
Keep the values in formula to find the distance dug by Jess on Wednesday
Distance dug by Jess on Wednesday = 9.7 - 7.3
Performing subtraction on Right Hand Side of the equation
Distance dug by Jess on Wednesday = 2.4 inches
Thus, the distance dug by Jess on Wednesday is 2.4 inches.
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A boy in a wheelchair (total mass 56.0 kg) wins a race with a skateboarder. He has speed 1.40 m/s at the crest of a slope 2.20 m high and 12.4 m long. At the bottom of the slope his speed is 6.10 m/s. If air resistance and rolling resistance can be modeled as a constant friction force of 41.0 N, find the work he did in pushing forward on his wheels during the downhill ride.
Potential energy at the top plus work completed plus kinetic energy at the bottom equals kinetic energy at the top plus friction loss.
3/4mv2 + mgh + W = 3/4mv2 + Fd
1/2 * 56.5 * (1.4) (1.4)
² + 56.5 * 9.8 * 2.05 + W = 1/2 * 56.5 * (6.3) (6.3)
W = 1121.243 + 508.4 1190.555 + W = 1629.643 W = 1629.643 - 1190.555 W = 439.09 J = 2 + 41 * 12.4 1/2 * 56.5 * 1.96 + 56.5 * 9.8 * 2.05 + W = 1/2 * 56.5 * 39.69 + 41 * 12.4 55.47 + 1135.085
Kinetic energy: Is it at the top?We can infer that the summit of the hill is where kinetic energy is greatest because it is at its highest when velocity is at its highest.
Is the top 0 kinetic energy?Kinetic energy and potential energy are both zero maximum at the height of an item. 3.
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The work the boy did in pushing forward on his wheels during the downhill ride is 288.04J
Given mass of wheel chair (m) = 56kg
The speed at crest (v1) = 1.40m/s
The height of a slope (h) = 2.20m
The length of slope (l) = 12.4m
Speed at the bottom of slope (v2) = 6.10m/s
The force exerted (F) = 41N
The wheelchair accelerates as a result of two forces. The weight of the wheelchair that is parallel to the hill and the force the youngster applies are these two forces. The friction force is subtracted from the total of these two forces to determine the net force acting on the wheelchair.
Let the work done = W
From conservation of energy we can say The Kinetic Energy at the top + Potential Energy at the top + Work Done = Kinetic Energy at the bottom + Friction loss
KE1 + PE1 + W = KE2 +F2
1/2mv1² + mgh + W = 1/2 mv2² + Fl
1/2 x 56 x (1.4)^2 + 56 x 9.8 x 2.2 + W = 1/2 x 56 x (6.1)^2 + 41 x 12.4
W = 1550.28 - 1207.36 - 54.88
W = 288.04J
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The mass of the physics cart is manipulated. this is the variable. the cart accelerates differently as the mass of the cart changes. acceleration is therefore the variable. a ""constant"" is a parameter that stays the same regardless of the variables. one parameter that is held constant is the ._______
A "constant" is a parameter that stays the same regardless of the variables. One parameter that is held constant is the particular condition.
What is parameter?In general, a parameter is any feature that aids in describing or categorizing a certain system (meaning an event, project, object, situation, etc.). In other words, a parameter is a component of a system that is crucial or useful for identifying the system or assessing its functionality, status, or other characteristics.
In some fields, such as mathematics, computer programming, engineering, statistics, logic, linguistics, and electronic music production, the term "parameter" has more precise definitions.
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Answer: 1 - Independent, 2 - Dependant, 3 - applied force :)
Explanation: Source - Trust me bro
For a car of mass 1189 kg that completes the 0-to-60 test in 11.3 seconds. What is the acceleration of the car in m/s^2
The acceleration rate of a car that weighs 1189 kg and takes 11.3 seconds to reach 60 mph is 5.3 m/s2. Acceleration is a term used to describe how quickly an object's velocity changes over time.
There are accelerations in vector quantities (in that they have magnitude and direction). The acceleration of an object depends on the direction of the net force acting on it. how much quicker than usual a thing is going. The velocity of an item in motion is a function of time and quantifies how quickly its position modifies with respect to a frame of reference. A moving object's velocity indicates both its direction and speed of motion.
A=(v-U)/t, where A=(0-60)/11.3, and A=(60-11.3 = 5.3 m/s2).
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For a car that weighs 1189 kg and accelerates from 0 to 60 in 11.3 seconds. The vehicle will accelerate at 5.3 m/s2. This is the correct answer.
What is a prime illustration of acceleration?An object has positive acceleration if it is accelerating and travelling in the right direction. Positive acceleration can be demonstrated by an example of a speeding vehicle. The acceleration in this case occurs in the same direction as the vehicle's motion, which is forward and speeding up.
Why does acceleration matter more than speed?In terms of running, the body accelerates whenever it begins, picks up pace, or changes course. Given how frequently the rate of velocity must change and how frequently there are direction changes in most sports, it is obvious that acceleration is important for athletic speed performance.
Briefing:Acceleration, a = v-u/t where v = final velocity, u = initial velocity and t = time taken
a = 60 - 0/11.3
a = 5.3 s²
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The half-life of polonium-210 is 138 days. A nuclear physicist measures out a 128 gram sample. Approximately how many grams of polonium-210 would remain after 414 days?.
After 414 days, 16.11g of polonium-210 will still be present.
Radioactive nuclei are those that are unstable. The spontaneous destruction of an unstable nucleus by radioactive decay causes the release of matter and energy. It is a first-order reaction, and the following equations can be used to calculate the remaining concentrations of a certain nuclide on a sample:
[tex]ln\frac{N}{N_{0} } = -kt[/tex]
[tex]ln2=kt_{\frac{1}{2} }[/tex]
[tex]k=\frac{ln2}{t_{\frac{1}{2} } } =\frac{ln2}{138d} =5.02*10^{-3} d^{-1}[/tex]
Therefore, the amount of polonium-210 remaining after 414 days is
[tex]ln\frac{N}{N_{0} } =-kt[/tex]
[tex]lnN-lnN_{0} =-kt[/tex]
[tex]lnN=lnN_{0} -kt[/tex]
[tex]lnN=ln(128g)-(5.02*10^{-3} d^{-3} )(414d)=2.78[/tex]
[tex]N=e^{2.78} =16.11g[/tex]
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16.11g of polonium-210 will still be present after 414 days.
Stable nuclei are ones that are radioactive. Both matter and energy are released when an unstable nucleus spontaneously decays due to radioactive decay. The following equations can be used to determine the remaining concentrations of a certain nuclide on a sample because it is a first-order reaction.
In N/No = -kt
In2 = kt/2
k = In2/t(1/2) = In2/138d = 5.0× 10⁻³d⁻¹
Therefore , the amount of polonium-210 remaining after 414 days can be calculated as,
In N/No = -kt
In N = -INo = -kt
In N = In (128g) - (5.02 × 5.0× 10⁻³d⁻¹) (414d)
In N = 2.78
N = e²°⁷⁸ = 16.11g
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A man 1.9 m tall is standing 4.0 m from the edge of the barn. Will he be hit by the snowball? A. Yes B. No
The man is too far away from the barn for the snowball to reach him.
Option B. No.Calculating the Distance to See if the Man Will Be Hit by the SnowballThe way to determine if the man will be hit by the snowball is by calculating the distance between the man and the barn. The man is standing 4.0 meters away from the edge of the barn, which is too far for the snowball to reach. The man's height of 1.9 meters is taken into account, as the snowball would have to travel a greater distance than that to hit him. Based on this calculation, it is determined that the man is safe from the snowball and will not be hit.
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How do you calculate work done by gas in adiabatic process?
The work done by gas in adiabatic process is calculated by
W = [tex]\int\limits^{v_2}_{v_1} {pdV} \, dx[/tex]
where
W is the work done
dV is the change in volumes
P is said to be the pressure of the ideal gas
V1 and V2 are said to be volumes of two different gases
When an ideal gas is compressed adiabatically (Q=0), work is done on it, which raises its temperature; when the gas is expanded adiabatically (Q=0), work is done on it, which lowers its temperature. The cylinders of an automobile truly experience adiabatic compressions because the gas-air combination is compressed there so quickly that there is no time for the mixture to exchange heat with the air around it.
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The work done by gas in adiabatic process is calculated by W = [tex]\int\limits^v_{v2} _ \, pdv dx[/tex]
where W is the work done, dv is the change in volumes, P is said to be the pressure of the ideal gas, V1 and V2 are said to be volumes of two different gases.
The work done by gas in adiabatic process is calculated by W = [tex]\int\limits^v_{v2} _ \, pdv dx[/tex]
where W is the work done, dv is the change in volumes, P is said to be the pressure of the ideal gas, V1 and V2 are said to be volumes of two different gases. When an ideal gas is compressed adiabatically (Q=0), work is done on it, which raises its temperature; when the gas is expanded adiabatically (Q=0), work is done on it, which lowers its temperature. The cylinders of an automobile truly experience adiabatic compressions because the gas-air combination is compressed there so quickly that there is no time for the mixture to exchange heat with the air around it. Adiabatic process is in the process of thermodynamics and it is related to the transfer of the heat part in the thermodynamics section. In this process the heat is transferred in the process without the changing of the any other physical quantity.
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describe 3 ways of investigating the planets that were not available to scientist in keplers time
QUICK PLEASE
1. Radial velocity
2. transit
3. Direct imaging
4. gravitational microlensing
5. astrometry
Which molecules do cells need to release energy? Select the claim you think is most accurate.
Claim 1: Cells need glucose to release energy.
Claim 2: Cells need amino acids to release energy.
Claim 3: Cells need oxygen to release energy
Claim 4: Cells need glucose AND amino acids to release energy.
Claim 5: Cells need glucose AND oxygen to release energy.
Claim 6: Cells need ALL THREE types of molecules to release energy.
Answer:
Claim 5: Cells need glucose AND oxygen to release energy.
What is the porosity of the silt sample?(the sediment volume for each sample is 400ml.) a. 25.5% b. 39.75% c. 45% d. 53% please select the best answer from the choices provided a b c d
The porosity of the silt sample is 39.75% which is the sediment volume for each sample, 400ml. The correct option is b.
What is silt?Silt is a granular material of a size between sand and clay and is composed mostly of broken grains of quartz. Silt may occur as soil often mixed with sand or clay or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt also can be felt by the tongue as granular when placed on the front teeth even when mixed with clay particles.
Silt is a common material, making up 45% of average modern mud.
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What thermodynamic process for an ideal gas system has an unchanging internal energy and a heat intake that corresponds to the value of the work done by the system
The thermodynamic process for an ideal gas system that has an unchanging internal energy and a heat intake that corresponds to the value of the work done by the system is known as an isothermal process.
In an isothermal process, the temperature of the system remains constant as the gas expands or contracts, and the internal energy of the system remains unchanged.
The heat intake of the system corresponds to the amount of work done by the system, which is equal to the change in the internal energy of the system.
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Based on the forces of inertia and momentum, ________ varies according to speed, weight, and the distance between impact and stop.
The amount of force required to stop an object, based on the forces of inertia and momentum, varies according to speed, weight, and the distance between impact and stop.
Inertia is the tendency of an object to remain in motion unless acted upon by an outside force, while momentum is the product of an object's mass and velocity. The amount of force required to stop an object is proportional to its mass, velocity, and the distance it needs to travel before it comes to a stop. The greater the mass, velocity, and distance, the more force is required to stop the object.
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