A mover hoists a 200 kg piano from the ground to a height of 10 m using a single pulley. What was the change in the pianos energy? a. 20j b. 200j c. 2000j d. 20000

When is a sailboat the stand on vessel in relations to a recreational power boat?

An 85kg man is jogging with a velocity of 2.6m/s to the north. nearby a 65kg person is skateboarding and traveling with a velocity of 3m/s north. which person has greater momentum show your calculations

Given a force of 100 n and then acceleration of 10 mi./s squared what is the mass

Milk is an example of a A.) solution B.) homogeneous mixture C.) colloid D.) compound

Which of the following is a correct principle of relative-age dating? A. In undisturbed rock layers, the youngest rocks are on the bottom. B. Rock-forming materials are deposited in horizontal layers, though they may be tilted later. C.

A syrup added to an empty container with a mass of 115.25g. When 0.100 pint of syrup is added, the total mass of the container and syrup is 182.48g. Determine the density ... ?

MOST high schools teach biology, then chemistry, then physics. What do you see as some of the disadvantages of the traditional sequence to both students and teachers.

If you break a bar magnet in half, each half

If a forklift raises a 76-kg load a distance of 2.5 m, about how much work has it done?

When a fork is placed in a hot piece of lasagna, thermal energy is transferred up the fork by ...