Technician A says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking. Technician B says damaged condenser fins may cause inefficient air conditioning operation at all blower speeds. Which technician is correct?

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?