If a box is on a flat, horizontal sidewalk and a force (F) acts on a box for 2 m doing 20 J of work on the box and a frictional force act on the box for the same 2 m and does 15 J of work on the box. What is the total work done on the box and what is the box doing at the end of the 2 m

Modify the equation fδt=δ (mv) to find the force of friction.

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter