If a person lifts an 8.5kg box to a height of 15.3m how much work is done on the box?

Temperature is perhaps the most important factor in the distribution of organisms because

For part A (steel projectile), compute the total kinetic energy before and immediately after impact (show your work).

Which of the following systems is not true about machines?

Light travels at the rate of 300,000 kilometers per second in a vacuum." Which of these statements is correct about this law? It is a fact in nature which cannot be tested. It is a theory which is not supported by data.

A helicopter is ascending vertically with a speed of 5.10m/s. At a height of 105m above the Earth, a package is dropped from a window.

A farmer had 15 sheep, and all but 8 died. How many are left?

While playing with her 5 year old cousin, a Physics 135 student pushed him forward on his scooter. She pushes with a force of 50 Newtons for 3.5 seconds. If the boy and the scooter together have a mass of 30 kg, what is their final velocity? a. 2.

3. A 120.0 V generator supplies 3.0 kw of power. How much current ca the generator deliver?

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?