Heat is: * a Heat transfer by direct contact
b The total kinetic energy in a substance
c The transfer of thermal energy from one object to another
d Heat transfer by a fluid

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.

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat