a car of mass 450 kg is acted on by a resultant force of 1575 N.Calculate its acceleration

This process depends on the presence of short-lived radioactive elements whose rapid decay released enough heat to melt the interior of planets.

An element is a substance whose atoms all have the same number of protons: another way of saying this is that all atoms of a given element have the same number of protons. Elements are the simplest chemical forms and thus can not be broken down through chemical reactions.

The elements are classified as metal, non-metal, and metalloid. The extreme left side elements in the periodic table are metals, for example, sodium, calcium, caesium, etc. However, elements on the right side are generally referred to as non-metals, carbon, chlorine, oxygen, etc.

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what are the options?

The angular momentum of the baseball, given that the baseball has a mass of 0.15 kg and a radius of 0.03 m is 0.181 Kgm²/s

Angular momentum is simply defined as the product of mass, velocity and radius as shown by the following formula:

Angular momentum = mass × velocity × radius

With the above formula, we can obtain the angular momentum of the baseball as illustrated below:

The following data were obtained from the question:

Inputting the variables into the above formula, we have:

Angular momentum = mass × velocity × radius

Angular momentum = 0.15 × 40.23 × 0.03

Angular momentum = 0.181 Kgm²/s

Thus, from the above calculation, we can conclude that the angular momentum of the baseball is 0.181 Kgm²/s

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According to the given information temperature and velocity  of the following is a vector quantity

A vector quantity is one that just has magnitude, whereas a vector quantity has both orientation and magnitude. Given that it is direction-independent at a given position, heat is a scalar number.

Vectors include gravity and displacement. They possess both a value and a direction. The fact that gravity and displacement are pointing in the same direction in this instance allows us to derive a scalar energy from them (in this example, their direction are down and down, respectively).

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The buoyant force acting on the suspended object exactly equals the object's weight.

Explanation:

If the buoyant force is greater than the object's weight, the object will rise to the surface and float. If the buoyant force is less than the object's weight, the object will sink. If the buoyant force equals the object's weight, the object can remain suspended at its present depth.

A positively buoyant item is one that floats in water. A sinking item is negatively buoyant. To calculate the buoyancy of an item, both its mass and volume * must be known.

Negative buoyancy occurs when the submerged item is denser than the fluid displaced, causing the object to sink. When the weight of the submerged item equals the fluid displacement, neutral buoyancy occurs. The scuba diver's dive is an excellent illustration of neutral buoyancy. Objects sink because of negative buoyancy. It refers to an item whose weight exceeds that of the liquid it displaces.

Here,

Positive buoyancy refers to an item that floats in water. Sinking objects are negatively buoyant. To calculate an object's buoyancy, both its mass and volume * must be known.

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P equals F net t. t F net F net The impulse-momentum theorem is an equation that relates the quantities t and.

According to the equation, the impulse is equal to the average net external force times how long it takes for that force to act.

It is equivalent to the momentum shift.

You may use our calculator to directly calculate the impulse using the impulse formula J = p by entering the starting and end momentum values.

To compute the impulse using the equation J = mv, you may additionally insert the mass and velocity change of an object.

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A chronometer is a precision timekeeping device used to measure time intervals and to keep track of the time of day. Chronometers are often used in navigation to determine a ship's longitude, and in astronomy to measure the times of astronomical phenomena.

The chronometer is a precision timekeeping device which has been essential to the fields of navigation and astronomy for centuries. By measuring time intervals with accuracy and keeping track of the time of day, chronometers have enabled the advancement of these fields in many ways.

In navigation, chronometers are used to determine a ship’s longitude. By comparing the local time at the ship’s current location to the local time at a known location, navigators can calculate their longitude. This has been a major factor in the development of maritime navigation, and has enabled ships to travel long distances with greater accuracy and safety.

In astronomy, chronometers are used to measure the times of astronomical phenomena. Astronomers use chronometers to measure the exact times of eclipses, transits, occultations, and many other celestial events. This helps them to make predictions about the movements of celestial bodies and to observe their behavior.

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Answer:

To find the force with which the cue ball will strike the other ball, you will need to use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration.

You can calculate the force using the following formula:

Force = mass * acceleration

Plugging in the values from your question, we get:

Force = 0.350 kg * 5.21 m/s^2 = 1.82 N

To convert the distance the cue ball travels from centimeters to meters, divide the distance by 100. So 175 cm is equal to 1.75 m.

I hope this helps!

The work done when one mole of a gas expands isothermally from 15 L to 50 L against a constant pressure of 1 atm at 25 °C is -718 cal.

As we know that, work done in isothermal expansion is given as

W = -n RT ln(V₂/V₁) = - 2.303 n RT log(V₂/V₁)

Given,

Number of moles n = 1

Gas constant R = 2 cal

T is constant temperature associated with the process = 25 °C = (25 + 273)K = 298 K

Initial volume V₁ = 15 L

Final volume V₂ = 50 L

W = - 2.303 × 1 × 2 × 298 × log(50/15) = -1372.588 (log10 - log 3) = -1372.588 × 0.523 = -717.86 ≈ -718 cal

Thus, the work done will be -718 cal.

The given question is incomplete. The complete question is ' What will be the work done when one mole of a gas expands isothermally from 15 L to 50 L against a constant pressure of 1 atm at 25 °C ?'

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The juggler throws an orange vertically in the air. it will take the same time for descend as that of it will take the time for ascend.

A juggler throws an orange vertically into the air. The time of ascend and the time for descend is same because of the gravitational field acting on it. The gravitational field acting on it will be the same for the both time of flight as it goes upward and as it coming downward and it will act on it in the same way. Hence, we will see that the orange is taking the same time as it is going upward and then it is coming downward, it will not experience any other significant force rathe than the gravitational force. rest of the forces like the air friction goes cancelled out as it will not be made a significant part on the orange. the only force that is acting on it continuously is the gravitational force. so we can consider that the juggler throws an orange vertically in the air. it will take the same time as that of it will take the time for ascend.

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The force F acting on the surface is 4.57 N. The total energy stored in the system when the spring is stretched is 0.132 J. The magnitude of acceleration on the spring is 18 m/s². The speed of the block when reaches equilibrium position is 1.03 m/s.

The force acting on a stretchable material is directly proportional to the displacement of the object from the equilibrium position x.

Thus, F = k x.

Where, k is called the force constant or spring constant.

Given that, the displacement = 5.46 cm = 0.054 m

force constant = 83.8 N/m

Force = 83.8 N/m × 0.054 m = 4.57 N

The total energy stored on the system is equal to its potential energy mgh

m = 0.250 kg

Then p = 0.250 kg × 0.054 m× 9.8 m/s² = 0.132 J

Acceleration = force/ mass

= 4.57 N/0.250 = 18 m/s²

At the equilibrium position, the kinetic energy of stretching equal to the potential energy stored on it.

hence, speed v = √(2gh)

v = √2× 9.8 m/s² ×0.054m = 1.03 m/s.

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The net displacement of the ball is 50.25 yards.

Displacement refers to the distance between two positions along the movement path of an object, and the resultant distance between the initial and final positions is called the net displacement. Net displacement is the smallest distance between the initial and final points. Based on the given information, the distance d1 = 43 yards and with of the football field d2 = 52 yards. As the football is kicked from the very center of the field to the sideline, the two distances are perpendicular, the net displacement can be determined by Pythagoras theorem. Hence,

d = √(d1)^2 + (d2/2)^2

d = √(43)^2 + (52/2)^2

d = √(43)^2 + (26)^2

d = √2525 ≈ 50.25 yards

Note: The question is incomplete. The complete question is A kicker punts a football from the very center of the field to the sideline 43 yards downfield. What is the magnitude of the net displacement of the ball? (A football field is 52 yards wide.)

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Compared with a simple galvanometer, an electric motor is Much the same with small modifications.

An electric motor is a device for converting electrical energy into mechanical energy. A tool that functions the other way around, converting mechanical energy into electrical energy is called a generator or dynamo. Electric motors can be found in household appliances such as fans, washing machines, water pumps, vacuum cleaners. and much more.

Electric motors that are commonly used in the world Industry are asynchronous electric motors, with two global standards namely IEC and NEMA. metric (millimeter) based IEC asynchronous motors, while imperial  (inch) based NEMA electric motors, in applications there are power units in horsepower (hp) and kiloWatt (kW).

IEC electric motors are divided into several classes according to their efficiency, as a standard in the EU, this class division is EFF1, EFF2 and EFF3. EFF1 is the most efficient electric motor, consumes the least amount of energy, while EFF3 is no longer allowed to be used in the EU environment, because it wastes fuel in the power plant and will automatically generate the most carbon emissions, thus polluting the environment even more.

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According to the given statement the location of the object needs to be in -21cm

The ratio of the image distance to the object distance is also known as magnification.

Convex mirrors are curved mirrors with reflective surfaces that protrude in the direction of the light source.

The magnification is given by,

m = -(v/u)

As given,

1/2 = -(v/u)

or, 1/v = -(2/u) [1]

For convex mirror,

1/v + 1/u = 1/f

Given, f = 21

- 2/u + 1/u = 1/21 [from 1]

or, u = -21

Therefore, according to the given statement the location of the object needs to be in -21cm

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A convex mirror has a focal length of 21.0 cm. The location of the object needs to be in -21cm.

A convex mirror has a focal length of 21.0 cm. The location of the object needs to be in -21cm. The ratio of the image distance to the object distance is also known as magnification. Convex mirrors are curved mirrors with reflective surfaces that protrude in the direction of the light source. Therefore, according to the given statement the location of the object needs to be in -21cm. Convex mirrors are the mirrors that use to reflect the surface in a more better way than the concave mirror. Convex mirror accumulate the light at one place and it generates more power by collecting all the light rays in the one place and use it all in any of the work. When we accumulate the light rays and use it for anything, it will made the power more. Hence, we can see that a convex mirror has a focal length of 21.0 cm. The location of the object needs to be in -21cm.  

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While the electric field caused by a dipole changes inversely with the cube of the distance, the electric field caused by an isolated point charge changes inversely with the square of the distance.

The electric field strength is zero throughout the whole cavity of a spherically charged, isolated shell. The length of the electric field is endlessly long and uniformly charged inside a cylindrical shell that is separated from the outside world.

The size of the electric field produced by a point charge Q is determined by this equation. The distance r in the denominator is the separation between the point of interest and the point charge, Q, or the centre of a spherical charge.

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When your friend tells you that last night, they saw Mars high in the sky at midnight, you conclude that A) Mars must be in retrograde.

When your friend tells you they saw Mars high in the sky at midnight, you may be surprised to learn that this could be a sign that Mars is in retrograde. Retrograde is a phenomenon when a planet appears to move backward in its orbit.

Although it looks like the planet is moving in the opposite direction, it is actually an optical illusion caused by the relative positions of Earth and the planet in their orbital paths.

With Mars in retrograde, it is believed that the planet's energy affects us differently and can have an impact on our lives. So, if you see Mars high in the sky at midnight, it could be a sign that it is in retrograde.

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Answer:

given;

mass=60 kg

height= 8 m

acceleration due to gravity=9.8m/s

so;

potential energy=MGH

=60×8×9.8 Newton

=4704 newton

Answer:

it's 4704

Explanation:

because the formula of potential e eggy is mgh where gravity(g) is always 9.8 m/s , mass is 60 and h meters is 8

For a fixed sample size n, "the type II error (β) will increase" if the type I error (α) for a given test is to be decreased. Thus, the correct answer is B.

The Type I error, also known as a false positive, is the probability of incorrectly rejecting a null hypothesis when it is actually true. The Type II error, also known as a false negative, is the probability of incorrectly failing to reject a null hypothesis when it is actually false. When the Type I error (α) is decreased for a given test, the probability of making a Type II error (β) increases. This is because decreasing the Type I error rate makes the test more stringent, which in turn makes it harder to reject the null hypothesis. As a result, the power of the test, which is the probability of correctly rejecting a null hypothesis when it is false, may not increase.

Option A is incorrect because decreasing (α) does not necessarily mean that (β) will decrease. Option C is incorrect because increasing the power of the test, or the likelihood of correctly rejecting a false null hypothesis, is not directly related to decreasing (α). Option D is incorrect because the type of test (one-tail or two-tail) is not necessarily related to decreasing (α).

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Answer:

0

Explanation:

if Sparkly was falling from somewhere then you coud multiply 0.75x 8, otherwise i think its displacement is 0

The volume of such sphere is 100/3 cubic feet, according to the provided declaration.

A hemisphere is a three-dimensional object, whereas a rectangle is a two-dimensional figure. In a sphere, all the spots are equally spaced from the center along one of the axes, unlike in a circle where all points are equally spaced from the center along a plane.

If you look at the sphere in this instance, the height is equal to double the radius.

The volume of something like a sphere may be calculated using the formula πr²h. Basically, the height is merely 2r. The modified formula is now πr²2r = 2πr³.

2πr³ = 50

πr³ = 25

r³ = 7.957747155

r = [tex]\sqrt[3]{7.957747155}}[/tex]

r = 1.99

Now that we know how big the radius is, we can calculate the sphere's volume.

= (4 / 3)πr³

= (4/3)π

= (4/3)π * 7.957747155

= (4/3) * π * (25 / π)

= (4/3) * 25

= 100/3 cubic feet.

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The complete question is-

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 50 feet cubed. A cylinder with height h and radius r. A cylinder with height h and radius r. What is the volume of the sphere? StartFraction 50 Over 3 EndFraction feet cubed StartFraction 100 Over 3 EndFraction feet cubed 75 feet cubed 100 feet cubed

"The work done when 1 mole of a gas expands isothermally from 25 L to 250 L at a constant pressure of 1 atm and a temperature of 300 K is -5744 J."

Given that,

Initial volume V₁ = 25 L

Final volume V₂ = 250 L

Number of moles n = 1

Temperature T = 300 K

We know that, Gas constant R = 8.314 J mol⁻¹ K⁻¹

W = -nRT ln( V₂/V₁)

When the values are entered into the formula, we have

⇒ -1 × 8.314 × 300 × ln(250/25) = -5744 J

Thus, the work done is calculated to be -5744 J.

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the electric field inside the dome of a highly-charged Van De Graaff Generator is zero.

A Van de Graaff generator is an electrostatic generator which uses a conveyor belt to accumulate electric charge in a hollow metal ball on top of an insulated pole, creating a high electric potential. Producing high voltage in direct current (DC) electricity at a low level. This generator was invented by the American physicist Robert J. Van de Graaff in 1929.

The Van de Graaff generator was originally used as a particle accelerator for physics research, because with its high potential it can be used to accelerate subatomic particles to very high speeds in an evacuation tube. This generator is also a type of powerful accelerator until the discovery of the cyclotron which existed in the early 1930s. The Van de Graaff generator is still used as an accelerator to produce energetic particles and X-rays for nuclear research and nuclear medicine.

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The total energy of the bird is 45.45 J.

The total energy of the bird is calculated by applying the following equation as shown below.

E ( total ) = P.E + K.E

Where;

E ( total ) = mgh + ¹/₂ mv²

where;

The total energy of the bird is calculated as follows;

E ( tot ) = ( 0.02 x 9.8 x 200 ) +  ¹/₂ (0.02)(25²)

E ( tot ) = 45.45 J

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The complete question is below;

a 20 g bird is flying at a height oof 200m from the ground with a velocity of 90KMPH calculate its total energy

I=affluence PAT's variable is denoted by the letter A. It indicates the population's average consumption for each individual.

The model's equation, known as IPAT, connects sustainability outputs to three cause elements. The model's fundamental formula is represented by the letters, which are Impact = Population * Affluence * Technology.

The IPAT formula was developed as a result of the discussion. According to this, human influence on the environment (I) is the sum of human population (P), human prosperity (A), and human technological impact (T), or I = PAT.

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A state machine is graphically represented by a state diagram. It displays a behavioral model made up of states, transitions, and actions, together with the events that have an impact on these.

Additionally, it's one of the 14 UMLs, or Unified Modeling Languages, that are employed for defining, modeling, building, and documenting software systems.

The two types of UML diagrams are structural and behavioral. While behavioral UML diagrams portray the dynamic changes inside a system, structural UML diagrams show the static framework of a system or process.

A state diagram is one kind of behavioral diagram, in case you hadn't guessed.

Therefore, A state machine is graphically represented by a state diagram. It displays a behavioral model made up of states, transitions, and actions, together with the events that have an impact on these.

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Answer:

They cause heat to flow from the system to the surroundings.

Pressure is calculated by dividing the force acting on a surface by the entire area over which it is acting.

The partial pressures of the component gases are added to determine the overall pressure of the gas combination. Ptot = "Pi" = P1 + P2 + P3... ntot = "ni" = the total number of moles in the gas mixture.

Pressure (P=FA P = F A) is equal to force divided by area. According to the equation, pressure is inversely related to area but directly related to force. Pressure rises at a constant area as the force exerted increases in strength.

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Ballistic stretching works muscles through a variety of motions to increase flexibility. Ballistic stretching before exercise prepares the muscles for high-impact action. Consequently.

Ballistic Method It is the oldest technique for stretching exercises. This strategy employs quick movements. A joint or even a muscle can be stretched with only repetitive motions or activities around it. It is essential to warm up properly before beginning such a workout.

Ballistic stretching uses the velocity of a moving person or limb to push an object outside its inherent range of motion. You are "starting to warm up" or stretched by jumping into an extended posture and using your stretched muscles like a springtime to pull yourself out of it.

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CDF distribution will be used, Using Binomial Random variable, this problem can be solved.

The cumulative distribution function of a real-valued random variable X, or simply the distribution function of X, assessed at x, is the likelihood that X will take a value less than or equal to x in probability theory and statistics.

The PDF is the likelihood that a random variable, let's say X, would take a value exactly equal to x, while the CDF is the likelihood that a random variable will have a value less than or equal to x.

The cumulative distribution function (cdf), which is sometimes abbreviated as F(x), provides the likelihood that the random variable X is less than or equal to x. The function defined by F(x)=P[Xx] is the cumulative distribution function of the random variable X.

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