Electric power plants do not operate efficiently because: A. A large amount of energy is lost as heat during generation. B. Electricity is lost during transmission. C. Energy often must be converted to supercooled hydrogen. D. A large amount of energy is lost as heat during generation and electricity is lost during transmission

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.