A box of mass 71 kg is at rest on a horizontal frictionless surface. A constant horizontal force F then acts on the box and accelerates it to the right. It is observed that it takes the box 6.7 seconds to travel 35 meters. What is the magnitude of the force

=force × distance a. work b. velocity c. pressure d. momentum

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings