109 Answered Questions for the topic mass

12/17/15

Explain physics question and answer.
Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction.   A car traveling at 20 m/s has 1,000 J of... more
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12/17/15

Explain total momentum in physics.
Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction.   When is total momentum greatest?   The... more
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12/17/15

Explain momentum before a collision.
Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction.   Which ball has more momentum before the... more
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12/17/15

Explain Physics Please.
Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction.   After the collision, ball A moves at 10... more
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12/07/15

How do the forces required to stop each dummy compare?
Two safety dummies (of equal mass) are being used to test seat belts. Dummy A has a wide seat belt, and Dummy B has a narrow seat belt. Both dummies are crashed into a barrier while in the same... more
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12/07/15

How does the pressure on each dummy compare?
Two safety dummies (of equal mass) are being used to test seat belts. Dummy A has a wide seat belt, and Dummy B has a narrow seat belt. Both dummies are crashed into a barrier while in the same... more
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12/07/15

How do the forces required to stop each dummy compare? How does the pressure on each dummy compare?
Two safety dummies (of equal mass) are being used to test seat belts. Dummy A has a wide seat belt, and Dummy B has a narrow seat belt. Both dummies are crashed into a barrier while in the same... more
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12/02/15

Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s.
Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s. Draw a diagram showing the carts before and after... more
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11/28/15

Describe the collision between two vehicles of very different masses moving toward each other at equal speeds.
Describe the collision between two vehicles of very different masses moving toward each other at equal speeds in physics terms.
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11/18/15

What will happen to the acceleration of the object?
A constant net force of 15 N acts on an object with a mass of 8 kg. As the mass of the object is increased, what will happen to the acceleration of the object? Explain.
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11/18/15

What happens to the cart's kinetic energy when the mass/velocity of the cart triples?
A cart with a mass of M is traveling at a velocity of V.   a) What happens to the cart's kinetic energy when the mass of the cart triples? b) What happens to the cart's kinetic energy when the... more
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11/07/15

A person with a mass of 60.0 kg is traveling at 18 m/s.
A person with a mass of 60.0 kg is traveling at 18 m/s.   a) How much kinetic energy does this person have?   b) How much work is required to stop the person?   c) Calculate the force... more
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10/05/15

The same force will give a mass of 3M an acceleration of what?
A force of F newtons will give an object with a mass of M an acceleration of A. The same force will give a mass of 3 M an acceleration of: Multiple choice:a) 1/3 Ab) 3 Ac) Ad) 1/9 A I know the... more
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10/05/15

The same force will give a mass of 3 M an acceleration of what?
A force of F newtons will give an object with a mass of M an acceleration of A. The same force will give a mass of 3 M an acceleration of:   Multiple choice: a) 1/3 A b) 3 A c) A d) 1/9... more
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Mass

09/28/15

The mass of an individual atom of chromium is 52.00 amu.
ow many atoms would weigh a total of 0.00001461 g of this element if the mass of 1 amu is 1.6605x10-24 g?
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09/18/15

A 150 pound person weighs 657 Newtons in the SI System. What is the person's mass?
A 150 pound person weighs 657 Newtons in the SI System. What is the person's mass?
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Mass Physics Force

09/18/15

A force of 100N accelerates a bowling ball at a rate of 450m/s^2. What is the mass of the bowling ball?
A force of 100N accelerates a bowling ball at a rate of 450m/s^2. What is the mass of the bowling ball?
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09/18/15

The acceleration of a 500kg mass when a 4N force is applied to it is:
The acceleration of a 500kg mass when a 4N force is applied to it is:
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08/22/15

center mass of a rod
If you have a rod of length 5 with density p(x)=2+(x/5). What is the center of mass of the rod? a. ¯x=2.5 b. ¯x=2.667 c. ¯x=3.333 d. ¯x=2.165
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07/05/15

Physics: Entropy Change
If a 0.06247 kg ice cube initially at 0.00 C is allowed to melt in a Styrofoam cup holding 0.497 kg of water at 10.0 C , what is the total entropy change for this process?
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07/02/15

How long will it take for this hanging mass to return to the zero angle?
Hello, I'm taking a summer course in college physics and am reviewing some practice questions to prepare for my oncoming exam. I'd really appreciate some help on this question that I'm not sure... more
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06/23/15

Physics: Angular velocity (multiple choice)
At a dilapidated playground, people have stolen the support bar to a merry-go-round leaving a flat disk that can rotate freely. While pondering conservation of angular momentum, a curious physics... more
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06/19/15

Physics: Conceptual Question (angular momentum)
At a dilapidated playground, people have stolen the support bar to a merry-go-round leaving a flat disk that can rotate freely. While pondering conservation of angular momentum, a curious physics... more
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06/18/15

Physics: What is the density of the unknown liquid?
A 85.0 g bottle is filled half full with 1.00 L of water. It is filled the rest of the way will an unknown liquid. The total mass of this full bottle is 1.75 kg, what is the density of the unknown... more
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06/18/15

Physics: How many 15.0 gram metal army men could you safely float on a piece of wood
A typical piece of wood has a density of 750 kg/m3. How many 15.0 gram metal army men (or Barbies - your preference) could you safely float on one such piece of wood having a mass of 1.25 kg, in a... more
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