At midday 35.4 GW of electricity generated

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.

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

Coal contains energy. a. light b. kinetic c. chemical d. mechanical