Abraham uses a lever to try to lift a huge rock. The rock weighs 2000 N, and Abraham is able to lift the rock using a force of 220 N. The fulcrum is 5 ft from Abraham. The rock is 0.5 feet from the fulcrum. What is the effort distance?

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.