A 160-lb person burns about 2900 calories to run a marathon. how much energy is burned in kj? assume two significant figures.

3.00Kg toy falls from a height of 1.00m. What is the kinetic energy just before the ground?

A rock is thrown horizontally at a speed of 5.0 m/s from the top of a cliff 64.7 m high. The rock hits the ground 18.0 m from the base of the cliff. How would this distance change if the rock was thrown at 10.0 m/s?

If you carry the 1 kg mass with you while running up the stairs would you be doing positive or negative work on the mass

How many people does it take to pull a wagon?

Which energy output objects work with the turbine?

A falling back in mid air has what

What objects are often arranged by their properties

Which nuclei is not radioactive? A. Am-241 B. Mg-24 C. Pu-241 D. U-238

What is the method of charging used when you run a straw with fur

A man runs at a velocity of 6.2 m/s for 11.5 minutes. When going up and increasingly steep hill, he slows down at a constant rate of 0.25 m/s^2 and comes to a stop. How far did he run?