Energy must be measured in

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.

A200 g lead frying pan gains 2000 joules of heat. what is the change in temperature