If the cart is pulled along at constant velocity, no acceleration, the energy of the carts motion is constant, but the force pulling it adds energy continuously. Where does the extra energy go

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

The electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.