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A 0.250 kg ball travels at a velocity of 40 m/s. Its momentum is

A ball dropped from a building falls for 5.00 seconds before it hits the ground. What was its final velocity just as it hit the ground? Neglect air resistance.

Which of Newton’s Laws explains the tendency of a moving object to remain in unchanging motion in the absence of an unbalanced force?

A car is moving straight down a highway under ideal conditions. What factor has the greatest influence on how much work must be done on the car to bring it to a complete stop? Hint: It’s the variable that gets squared in the kinetic energy formula.

You are moving a grocery cart at a constant speed in a straight line down the aisle of a store. The horizontal forces on the cart are

5 kHz = _____ Hz

Pick the correct and balanced equation

How many seconds are required for sunlight to reach the earth if the sun is 1.50×1011 m from earth? The speed of light in a vacuum is 3×108 m/s.

The atoms of an element will always have the same number of?

Two identical cars start at rest on a long hill, with car B four times as high as car A. How much more work is needed to stop car B at the bottom of the hill? Hint: Calculate how much greater the potential energy is for car B.