What is the SI unit for momentum?

kg•m

kg•m/s

kg•m²/s

Kg•m/s^2

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A child walks 35 meters in 7 seconds. calculate the child's speed.

Why would you expect the speed of light to be slightly less in the atmosphere then in a vacuum?

Find the time t1 it takes to accelerate the flywheel to ω1 if the angular acceleration is α. express your answer in terms of ω1 and α.

A locomotive has a mass of 200,000kg. It is moving at 4.5m/s. Find its momentum.

A Car is lifted a certain distance in a service station and therefore has potential energy relative to the floor. if it was lifted twice as high, how much potential energy would it have?

How long does it take a 750-w coffeepot to bring to a boil 0.75 l of water initially at 11°c? assume that the part of the pot which is heated with the water is made of 280 g of aluminum, and that no water boils away?

An electric motor rotating a workshop grinding wheel at a rate of 151 rev/min is switched off. Assume constant angular deceleration of magnitude 2.23 rad/s 2. Through how many revolutions does the wheel turn before it finally comes to rest

1. What is the atomic number of an atom? Why is this number important? |

The car travels down the road at 60mph for 1.5 hours. How far does it go?