Which two of the following involve the same energy transfer. Assume that the same substance and the same mass is involved in all four processes. a. melting
b. evaporation
c. sublimation
d. condensation

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.

What sort of waves exhibit the doppler effect?