Answer:
1167 kg/m³
Explanation:
Density = Mass / Volume = 1400 kg/ (2 m × 3 m × 0.2 m) = 1167 kg/m³
Is the refractive index of glass is 2 by 3 then the speed of light is?
The refractive index of glass is not a factor in determining the speed of light. The speed of light in a vacuum is always the same and is equal to 299,792,458 meters per second.
The Unchanging Speed of Light: An Exploration of Its ConsistencyLight is one of the most fascinating natural phenomena in the universe. It is an essential part of the everyday lives of humans, allowing us to see the world around us. Its speed, however, remains one of the most remarkable and consistent characteristics of light. This essay will explore the unchanging speed of light and discuss its importance in the world.
Light is composed of particles called photons, which travel through space at a constant speed. This speed, known as the speed of light, is 299,792,458 meters per second in a vacuum. This means that, regardless of the environment, the speed of light will not change. This is significant, as it allows us to calculate the distance between two points in space, or even the age of certain objects in the universe, based on the speed of light.
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the solubility of caco3 (formula weight 100.1) is 0.0095 g in 1800 ml. what is the ksp? A.2.8 x 10-9B.2.8 x 10-5C.5.2 x 10-9D.3.8 x 10-7E.5.2 x 10-5
The ksp (solubility product constant) in CaCO₃ solubility (formula weight 100.1) is 0.0095 g in 1800 ml = 2.8 x 10⁻⁹ (option A)
The equilibrium constant for a saturated solution of an ionic chemical at a specific temperature is known as the solubility product constant (Ksp). We need to know the compound's molar solubility in order to determine the Ksp.
m = 0.0095 g
Mr = 100 g/mol
V = 1800 ml.
M = (m/Mr) x (1000/V)
= (0.0095 / 100) x (1000 / 1800)
= 5.2 x 10⁻⁵
Ksp CaCO₃ ⇒ Ca²⁺ + CO₃²⁻
Ksp CaCO₃ = s²
Ksp CaCO₃ = (5.2 x 10⁻⁵)²
= 2.8 x 10⁻⁹
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a specialist in the study of outbreaks of disease within a population group is known as a/an _____.
A specialist in the study of outbreaks of disease within a population group is known as an epidemiologists.
Epidemiologists are there to conduct investigations wherever there is an epidemic of illness or any other type of threat. Epidemiologists are frequently referred to as "Disease Detectives" since their job is to investigate diseases in order to find out what causes them, who is at risk of contracting them, how to restrict the disease's spread, and how to stop it from occurring again. So a specialist in the study of outbreaks of disease within a population group is known as an epidemiologist.
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for a moving object, the force acting on the object varies directly with the object's acceleration. when a force of 10 n acts on a certain object, the acceleration of the object is 2 /ms2. if the acceleration of the object becomes 9 /ms2, what is the force?
According to Newton's Second Law, an object's acceleration is a function of the overall net force that is acting on it. The net force acting on the item, its mass, and its acceleration as a result of the applied force are all represented algebraically by this.
What is the equivalent of a newton?A newton is equal to 100,000 dynes in the centimeter-gram-second (CGS) system or approximately 0.2248 pounds inside the foot-pound-second (English, usually customary) system.
Why are forces measured in Newtons?The letter N, which stands for "Newtons," is the unit of force measurement most frequently used. It bears Isaac Newton's name, as you probably have guessed. A force of 1 Newton is needed to accelerate a mass of 1 kilogram (kg) by 1 meter per second squared.
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generally speaking, deserts are located in places where air masses are usually ________.
" Deserts are located in the places where the air masses are usually descending."
Near 30 degrees north latitude and 30 degrees south latitude, when the warm equatorial air starts to descend, are where the majority of the world's deserts are found. Large amounts of water from the surface of the land are vaporised by the dense, warming, descending air. The environment that results is quite dry.
Large sand-filled areas of arid land are known as deserts. These places lack significant water bodies and have little to no vegetation. In these places, the precipitation is very scarce. Deserts control over one-fifth of the surface on Earth.
The volume of air at a considerable, uniform temperature, pressure, and humidity is known as air mass. The air masses can spread out in any direction for kilometres. Polar, Arctic, Equatorial, Tropical, etc., are some examples of air masses.
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If a comet flies over 50,000 km/h for four hours how far has a travel?
If a comet flies over 50,000 km/h for four hours, then comet has travelled a distance of 2 * 10^5 km.
What is the relationship between speed, distance and time?Speed distance time is the formula that is used to explain the relationship between speed, distance and time. Here, speed = distance ÷ time. We can also say that distance divided by speed will give you the time. Provided you know two inputs, then you can work out the third one.
Given Speed is 50,000 km/h and time is 4 h
We know that distance is speed * time
= 50,000 * 4
= 2 * 10^5 km
Comet has travelled a distance of 2 * 10^5 km.
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________ is composed of alternating bands of light and dark silicate minerals.
Gneiss shows such banding. Alternating bands are known to Geologists as Gneissose Banding, and is used to instantly classify the metamorphic rock.
What is made up of bands of bright and dark silicate minerals that change throughout time?Aluminum, iron, magnesium, and calcium are all present in various concentrations in the silicate mineral family. Tiny, glassy red garnet crystals are a common feature of gneiss and schist. a foliated, coarse-grained metamorphic rock that frequently includes bands of alternating light- and dark-colored minerals.
What kind of rock has alternating mineral bands as a feature?Schist forms at lower pressures and temperatures than gneiss. Gneiss almost always exhibits a banded texture with alternating lighter and darker coloured bands and lacks a clear cleavage. In the old crust of continental shields, gneisses are typical.
Such banding is visible in gneiss. Geologists employ alternating bands, known as "gneissose banding," to quickly classify metamorphic rock.
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the function of _____ is to convert digital signals to analog signals and vice-versa.a) Modems b) Multiplexers c) Front-end processors d) Servers e) Clients
Modem is a device that can convert digital signals to analog signals.
What is modem?A modem is a hardware or application that allows a computer to send data across telephone or cable lines. Computer information is stored digitally, whereas telephone information is delivered in the form of analog waves. A modem is a device that transforms between these two formats.
A data converter, in general, is a device that transforms analog signals to digital data or vice versa. ADC refers to devices that convert analog signals to digital signals. DACs are devices that convert digital signals to analog signals.
The analog signal is sampled by the Analog to Digital Converter on each falling or rising edge of the sample clock. The ADC receives the analog signal, measures it, and transforms it to a digital value in each cycle.
Here,
A modem is a device that converts digital to analog signals.
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Selena stands on a pogo stick, compressing the spring by 0.376 m. The spring's constant is 3,020.7 n/m. What is the pogo stick's elastic potential energy?
The pogo stick's elastic potential energy is equal to 213.53 Joules.
What is elastic potential energy?In Science, the quantity of energy that is stored in an elastic object such as a spring is referred to as elastic potential energy and it can be defined as the mechanical potential energy that is possessed by the elastic object due to an application of a force which deforms or compresses it.
Mathematically, the elastic potential energy of a physical object can be calculated by using this mathematical expression:
U = 1/2 × ke²
Where:
U represents the elastic potential energy.k represents the spring constant.e represents the compression or change in position.Substituting the given parameters into the elastic potential energy formula above, we have;
Elastic potential energy, U = 1/2 × 3,020.7 × 0.376²
Elastic potential energy, U = 1510.35 × 0.141376
Elastic potential energy, U = 213.53 Joules.
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use your knowledge of the collision theory and use the potential energy diagram given to answer questions 1 through 5. which letter represents the activation energy? group of answer choices c none of the above a b
The activation energy for a reaction is illustrated in the potential energy diagram by the height of the hill between the reactants .
What is energy formula?The equation developed by Albert Einstein, which is usually given as E = mc2, showing that, when the energy of a body changes by an amount E (no matter what form the energy takes), the mass (m) of the body will change by an amount equal to E/c2.
What is energy and its unit?Energy can be defined as the ability to do work. The amount of energy possessed by a body is equal to the amount of work it do when its energy is released. Energy is a scalar quantity. The SI unit of energy is Joule.
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A typical adult uses about 2,500 Calories of energy each day. (Hint: 1 Calorie = 4184 J). Use this fact to calculate the typical adult's average power requirement, in watts.
The typical adult's average power requirement (in watts) each day = 121.06 Watt
Both the internal mechanisms that maintain your body's health and the external acts that let you interact with the physical world are supported by energy. It also maintains, builds, and repairs the tissues and cells of the body. Water, the most essential nutrient for the body, helps with the chemical conversion of food into energy.
Adult uses about 2,500 calories
1 Calorie = 4184 J
E = (2,500 x 4184)
= 104,600,000 J
= 10.46 x 10⁶
A day = 24 hours = 1440 = 86400 second
To determine power (P) use equation:
P = E/T
Where,
P = power (watt)
E = energy (Joule)
T = time (second)
So, the typical adult's average power requirement (in watts) each day:
= (10.46 x 10⁶) / 86400
= 121.06 Watt
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A ball with a mass of 0.3 kg is placed at the top of a ramp with a height of 1.6 m.
a. What is the potential energy at the top of the ramp?
b. What is the kinetic energy of the ball as it leaves the ramp (touches the ground)?
Please answer both questions and show work
a. The potential energy at the top of the ramp is 4.8 J. (PE = mgh, where m=0.3 kg, g=9.8 m/s2, and h=1.6 m).
b. The kinetic energy of the ball as it leaves the ramp is 4.8 J. (KE = 1/2 mv2, where KE and PE are equal).
(a) The potential energy at the top of the ramp is 4.708J and
(b) The kinetic energy of the ball when it leaves the ramp is also 4.708 J.
We know that,
The total energy of a system remains constant as energy neither be created nor destroyed.
Total energy = Potential energy + Kinetic energy
Potential energy, PE = m×g×h
here, m: mass of ball;
g: acceleration due to gravity
h: Height of the object from the ground as we took the ground as a reference
PE = 0.3 × 9.81 m/s² × 1.6m
or PE = 4.708 J
So, when the ball is at the top of the ramp
PE = 4.708J, KE = 0
Total energy = 4.708 + 0 = 4.708J
Now, as the ball leaves the ramp and touches the ground (h=0) potential energy becomes zero.
hence, Total energy = PE + KE
or 4.708 = 0 + KE
KE = 4.708 J
Therefore, (a) The potential energy at the top of the ramp is 4.708J and
(b) The kinetic energy of the ball when it leaves the ramp is also 4.708 J.
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if your inboard/outboard boat runs aground, what action should you take in addition to shifting the weight away from the point of impact? boat us
Put your boat in forward motion only. Instead, turn off the car and raise the outdrive. Should you take any additional action in addition to moving your weight away from the site of impact displacement
What is displacement?The concept of displacement denotes the notion that an object has moved or have been relocated. An object's positional change is referred to as "displacement."
What is a sentence example of displacement?Its 2-liter, 4-cylinder engine now has 2.4 liters of displacement and 160 horsepower instead of 146. For the majority of residential uses, automobiles with engines under 1000 cc are sufficient.
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1. According to the
opposite sex who they feel are roughly as attractive as they are.
2. According to the findings of anthropologist Margaret Mead, our ideas of masculine and
feminine behavior are reversed among the
people of New Guinea.
3. According to an extensive national survey, men prefer that a potential mate earn less money
hypothesis, men and women tend to be attracted to members of the
than they do, while women are more likely to be attracted by a man's professional status,
dependability, and fondness for
4. If you think that all members of a particular ethnic or social group are hot tempered, then you're
assigning a
to that group.
5. According to Sternberg,
love is composed of passion + commitment.
6. Brain organization differs between men and women in that the two halves of the brain in
women are connected with a thicker
7. While girls typically acquire
with abstract concepts in
8. According to social
theory, gender typing is more likely to be derived from
observational learning, as well as identification and socialization.
skills earlier than do boys, boys seem to do a bit better
The phrases sex and gender refer to various characteristics of what it means to be a woman or a man in any society, despite the fact that they are frequently used synonymously and complement one another.
What do you meant by gender ?Actually, the argument that we are drawn to those who are like us is very strong.According to the well-known imprinting theory developed by Mead, kids pick up skills by observing how adults behave.There is a substantial corpus of empirical research that supports this claim.The differentiating properties of things in various categories are highlighted by categorization.The kind of love that combines closeness, desire, and commitment is called consummate love, according to Sternberg's triangular theory of love.The volume of the prefrontal cortex, orbitofrontal cortex, superior temporal cortex, lateral parietal cortex, and insula was higher in females.When a child is between the ages of six and ten, they learn the vast bulk of abstract words and ideas. Some abstract words are taught to them early, though.Gender typing happens as a result of reinforcement and modeling, claims the social learning hypothesis.To learn more about gender refer to :
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Two spherical objects have masses of 3. 1 x 105 kg and 6. 5 x 103 kg. The gravitational attraction between them is 65 n. How far apart are their centers?.
The centers of the two spherical objects that are apart is 4.55 x 10³m.
Two spherical objects have masses of 3.1 x 10⁵ kg and 6.5 x 10³ kg. The gravitational attraction between them is 65N. The centers of the two spherical objects that are apart is 4.55 x 10³m. The gravitational force between two objects with masses m1 and m2 that are separated by a distance r is given by the equation:
F = [tex]\frac{G m1 m2}{r^{2} }[/tex]
where G is the gravitational constant, m1 and m2 are the masses of the objects in kilograms, and r is the distance between their centers in meters. In this problem, we are given the gravitational force between the two objects, F, and the masses of the objects, m1 and m2. We can use these values to solve for the distance r between the centers of the objects. Gravitational force is the force that attracts two bodies in the universe. it is applicable everywhere. it is applicable on every body whether it is small or big, it applies everywhere.
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4.55 x [tex]10^9[/tex] m are distance between their centre.
The gravitational force between two objects with masses m1 and m2 that are separated by a distance r is given by the equation:
F = [tex]\frac{Gm_1m_2}{r^2}[/tex] where G is the gravitational constant, m1 and m2 are the masses of the objects in kilograms, and r is the distance between their centers in meters.
In this problem, we are given the gravitational force between the two objects, F, and the masses of the objects, m1 and m2.
We can use these values to solve for the distance r between the centers of the objects.
Substituting the given values into the equation above, we get:
65 = G*(3.1 x 10^5 kg)(6.5 x 10^3 kg)/[tex]r^2[/tex]
Solving for r, we find that the distance between the centers of the objects is approximately:
r = sqrt(G(3.1 x 10^5 kg)(6.5 x 10^3 kg)/65)
=> sqrt((6.674 x 10^11 )(3.1 x 10^5 kg)(6.5 x 10^3 kg)/65)
= 4.55 x [tex]10^9[/tex] m
Thus, the distance between the centers of the two objects is approximately 4.55 x [tex]10^9[/tex] m .
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The figure shows a hollow tube forming three - quarters of a circle. It is lying flat on a table. A ball is shot through the tube at high speed. C?Explain. B, or path A, path As the ball emerges from the other end, does it follow path
Since there are no horizontal forces when the ball is outside of the tube, it will go straight forward since there is no net horizontal force. In this instance, the right response is (C).
What distinguishes vertical from horizontal forces?Horizontal refers to everything that is perpendicular to the horizon. Anything that forms a 90-degree angle (right angle) with the horizontal or the horizon is referred to as vertical since it is the opposite of the horizontal. The line that spans from left to right is therefore considered to be horizontal.
Which is greater, sin or cos?A brief sketch of the issue indicates that the sine function may be used to determine the vertical component of force and the horizontal component of force.
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The complete question is :
The figure shows a hollow tube forming three-quarters of a circle. It is lying flat on a table. A ball is shot through the tube at high speed.Image for The figure shows a hollow tube forming three - quarters of a circle. It is lying flat on a table. A ball is sh
As the ball emerges from the other end, does it follow path{
A}, path{
B}, or path{
C}?
Explain.
What is the work required to stretch a spring with a spring constant k of 2500 n/m by 4. 00 cm?.
The work required to stretch the spring with k spring constant is about 2.0 Joules.
The Elastic Potential formula can be given as:
[tex]E_{p} = \frac{1}{2} kx^{2}[/tex]
The symbols can be explained as:
Ep = Elastic potential energy ( J )
k = Spring constant ( N/m )
x = Spring extension ( compression ) ( m )
Spring constant (k) is given as 2500 N/m
Extension (x) is given as 4.00 cm = 4.00 × 10⁻² m
Work required (w)=?
[tex]W=E_{p} \\W=\frac{1}{2} kx^{2} \\W=\frac{1}{2} X 2500 X (4.00 X 10^{-2})^{2} \\W=1250X (16.00X10^{-2}) \\W=20000X10^{-2} \\W=2J[/tex]
The work required to stretch the spring is about 2.0 Joules.
Work can be defined as measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
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The work required to stretch a spring with a spring constant k of 2500 N/m by 4.00 cm is 2 J.
Given that,
Spring constant k = 2500 N/m
Extension of the spring x = 4 cm = 0.04 m
The work done to stretch the spring is given by the formula,
W = 1/2 × k x²
Putting the values in the above formula, we have,
W = 1/2 × 2500 × 0.04² = 2 J
Thus, the required work done to stretch a spring with a spring constant k of 2500 N/m by 4.00 cm is 2 J.
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The radius of our Sun is 6.96 × 108 m, and its total power output is 3.85 × 1026 W. (a) Assuming the Sun’s surface emits as a black body, calculate its surface temperature. (b) Using the result of part (a), find λmax for the Sun
a) The surface temperature would be 5,778 K and b) λmax for the Sun will be 0.50 μm.
The radius of our Sun is 6.96 × 108m and its total power output is 3.85 × 1026W.
Assuming the Sun's surface emits as a black body, we can use the Stefan-Boltzmann law to calculate its surface temperature.
Applying the law, we get T = (P / 4πσR2)1/4,
where P is the total power output, σ is the Stefan-Boltzmann constant, and R is the radius of the Sun.
Substituting the given values in the equation, we get T = 5,778 K.
Using the result of the previous calculation, we can find the wavelength of maximum emission (λmax) for the Sun.
To do this, we use Wien's displacement law, which states that λmax = 2898/T (in meters),
where T is the temperature of the Sun.
Thus, we get λmax = 0.50 μm.
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how did the modern synthesis modify the theory of natural selection
The Modern Synthesis modified the theory of natural selection by proposing a new concept of evolution that would emphasize the genetic basis of evolution as "changes in allele frequencies within populations."
What is the modern synthesis theory?In the 1930s and 1940s, a number of now-famous evolutionary biologists created the Modern Synthesis.
The Modern Synthesis proposed a new concept of evolution that would emphasize the genetic basis of evolution as "changes in allele frequencies within populations."
Alleles are different variants of the same gene that differ in the DNA sequence used to build proteins with different amino acid compositions.) The evolution of allele frequencies has been influenced by four forces;
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5. A boat moves through the water with two forces acting on it. One is a 2000 N forward push by the water on the propeller, and the other is a 1800 N resistive force due to the water around the bow. a. What is the acceleration of the 1000kg boat
Two forces acted on a 1000-kg boat. One is q 2000 N forward and the other is 1800 N resistive force. The acceleration of the 1000 kg boat is 0.2 m/s²
The relation between net force applied on an object and the acceleration is f-given by the Newton second law of motion
F = m . a
Where:
F = net force
m = mass
a = acceleration
In the given problem, there are two forces. Hence,
F = 2000 - 1800 = 200
m = 1000 kg
F = m a
200 = 1000 a
a = 200/1000 = 0.2 m/s²
The acceleration is 0.2 m/s²
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A student pushes a box across a horizontal surface at a constant speed of 0. 6 m/s. The box has a mass of 40 kg, and the coefficient of kinetic friction is 0. 5. The power supplied to the box by the person is:.
The power supplied to the box by the person is 11.76W
To calculate the power applied to the box, we first need to calculate the force of friction acting on the box. This can be done using the formula:
F = μ * N
Where F is the force of friction, μ is the coefficient of kinetic friction, and N is the normal force.
The normal force is equal to the mass of the box (40 kg) multiplied by the acceleration due to gravity (9.8 m/s^2). This is a force of 39.2 N.
Plugging this value into the formula above, we get:
F = 0.5 * 39.2 N = 19.6 N
Now that we know the force of friction acting on the box, we can calculate the power applied to the box using the formula:
P = F * v
Where P is the power, F is the force, and v is the velocity.
Plugging in the values we have, we get:
P = 19.6 N * 0.6 m/s = 11.76 W
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suppose that an airplane flying 60m/s, at a height of 300m, dropped a sack of flour. how far from the point of release would the sack have traveled when it struck the ground? where will the plane be in relation to the sack when the sack hits the ground?
469. 5m. if suppose that an airplane flying 60m/s, at a height of 300m, dropped a sack of flour.
What does suppose to mean?Supposed to is part of a modal verb phrase meaning expected to or required to. Although suppose to crops up frequently in casual speech and writing, it should not be used in that sense. Suppose (without the d) should only be used as the present tense of the verb meaning to assume .
Do I suppose meaning?used to show that you think something is true, although you wish that it were not: I suppose (that) all the tickets will be sold by now. used when you are annoyed: I suppose (that) you're going to be late again.
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Who solved the problem of longitude at sea?
The who solved the problem of longitude at sea is John Harrison. John Harrison was born at 24 march 1693 and died at 24 march 1773.
Who is Jon Harrison?John Harrison was a carpenter and clockmaker. In the age of sail, John Harrison invented the marine chronometer. This invention is a revolutionized the accuracy of the longitude position in the sea where there is no device can do during those time. By his invention, the safety of long journey in the say is dramatically because the navigator can determine where exactly their ship and decide a proper direction to move.
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Solve and explain, please??
Answer:
it's 5.91098
Explanation:
i don't know but I'm just tipping
How long does it take a 100 w motor to do 10 kilojoules of work
The amount of time it will take a 100W motor to do 10kJ of work is 100seconds.
How to calculate power?Power in physics is a measure of the rate of doing work or transferring energy.
It is the rate of doing work, it is the work done in unit time. The SI unit of power is Watt (W) which is equivalent to joules per second (J/s).
This means that power can be calculated by dividing the work done on an object by time.
According to this question, a 100W motor has done 10kJ of work. The time taken can be calculated as follows:
10kJ = 10,000Joules
100W = 10,000J/t
100t = 10000
t = 100s
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Find the velocity in m/s of a baseball thrown 38 m from third base to first base in 1. 7 s.
Answer:
22.3 m/s
Explanation:
Velocity=Displacement/Time
V=38/1.7=22.3 m/s
How much work does a 70 kg student do when she runs up a 3,227 m hill?
Answer:
2,213,722 J
Explanation:
You want to know the work done by a 70 kg student running up a 3227 m hill.
WorkThe work is the product of force and distance. The force is the product of mass and acceleration.
W = F·d = m·g·d
W = (70 kg)(9.8 m/s²)(3227 m) = 2,213,722 J
The student does 2,213,722 joules of work.
__
Additional comment
1 kg·m²/s² = 1 J
We trust you can tell the difference between m representing mass, and m representing the unit meters. 'g' is the acceleration due to gravity. The value usually used in problems like this is 9.8. The accepted standard value is 9.80665. A value sometimes used when precision is not required is 10 m/s².
The peak current through a capacitor is 20.0mA . Part A: What is the current if the emf frequency is doubled?Part B: What is the current if the emf peak voltage is doubled (at the original frequency)?Part C: What is the current if the frequency is halved and, at the same time, the emf is doubled?
A. The peak current through the capacitor is 20.0 mA if the frequency of emf is doubled = 40 mA
B. If the emf peak voltage is doubled (at the original frequency) = 40 mA
C. The current if the frequency is halved and, at the same time, the emf is doubled = 20.0 mA
The peak current = 20.0 mA
{v / [tex]\frac{1}{wc}[/tex] ) = wvc = 2πfvc = 20.0 mA = I₁
A. If the emf frequency is doubled
I₂ = 2f
= 2π (2fvc)
= 2 (2πfvc)
= 2 (20.0)
= 40 mA
B. If the emf peak voltage is doubled (at the original frequency):
v₂ = 2v₁
= 2πf (v₁) c
= 2π (2v) c
= 2 (2πfvc)
= 2 (20.0)
= 40 mA
C. The current if the frequency is halved and, at the same time, the emf is doubled:
f₂ = [tex]\frac{1}{2}[/tex] f₁ and v₂ = 2v₁
= 2πf₁v₁c
= 2π ( [tex]\frac{1}{2}[/tex] f₁) (2v) C
= 2πfvc
= 20.0 mA
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Two identical projectiles were projected at 200 km/h, the first at an angle 60 to the horizontal while the second is at angle 60 to the vertical, which projectile reaches a greater horizontal range?
a) first one
b) second one
c) They have equal ranges.
When i looked at the guide answer it said the answer is c, why is that, shouldn't it be the first one?
R will remain the same as sin2θ is same for 30° and 60°. This is why the two projectiles have equal ranges.
In a nutshell, what is projectile motion?A projectile is an object that is launched into the air and moves in the direction in which it is thrown under the influence of gravity. Only gravity is felt by the item after the initial force that launches it. The trajectory of the object is referred to as its trajectory, and the object is referred to as a projectile.
What is projectile motion and an illustration of it?Any object that is pitched, tossed, shot, flung, hoisted, hurled, cast, or otherwise thrown is a projectile. All of these actions—throwing a ball straight up, kicking a ball and imparting motion at an angle to the horizontal, or simply dropping objects to cause free fall—are instances of projectile motion.
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when air expands adiabatically, the pressure p and volume v satisfy the relationship constant at a certain instant, the pressure is 50 lb/in^2 and the volume 32 in^3 and is decreasing at a rate of 4 in^3/sec. how rapidly is the pressure changing at this instant?
The pressure changing at this instant if The positive sign indicates that the pressure is rising 8.75 psi per second.
What is pressure and its SI unit?Pressure is defined as the thrust (perpendicular force on a surface) acting per unit area of a body. Mathematically it can be defined as, SI unit of pressure is Pascal (Pa). 1 Pascal is the pressure exerted by a force of 1 Newton over an area of 1 metre2. Also, 1 P a = 1 N / m 2 .
How is pressure measured?Pressure is typically measured in units of force per unit of surface area ( P = F / A). In physical science the symbol for pressure is p and the SI unit for measuring pressure is pascal (symbol: Pa).
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