What is the specific heat of wood ?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?