Gasoline and diesel engines are: A: Internal Combustion Engines
B; Heat Pumps
C: External Combust. Engines
D: Heat Movers

Atransverse wave is traveling on a string stretched along the horizontal x-axis. the equation for the vertical displacement y of the string is given by y = (1.8 x 10-3)cos[π(13x - 60t)], where all quantities are in si units. what is the maximum speed of a particle of the string

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Which accounts for an increase in the temperature of a gas that is kept a constant volume