Victoria has a crate of vegestables that weighs 100 newtons. she exerts a force of 100 newtons to lift the crate with a pulley. whats the mechanical advantage in this situation?

Suppose you lift a 20 kg box by a height of 1.0 m. a. how much work do you do in lifting the box

Based on this activity, is kinetic energy always transformed into potential energy?

If the average speed of a car is 45 km/hr, how far can it travel in 40 minutes?

What do you think happens to the temperature when water changes to gas?

Do you think that's animals should be bred to develop a specific traits

A ballet student with her arms and a leg extended spins with an initial rotational speed of 0.90rev/s. As she draws her arms and leg in toward her body, her rotational inertia becomes 0.80 kg⋅m2 and her rotational velocity is 4.1rev/s.

The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use?

Which has more gravitational potential energy - - a cliff diver at the top of the cliff or a cliff diver at the bottom of the cliff?

A skydiver with a mass of 60 kg jumps from an airplane. Five seconds after jumping the force of air resistance is 300 N. What is the acceleration of the sky diver, five seconds after jumping?

How many basic wave forms are there? A.) 1 B.) 2 C.) 3 D.) 4