When you turn on a battery-powered flashlight, you transform a. heat energy into light and chemical energy. b. chemical energy into electrical energy and light. c. heat energy into chemical energy and light. d. electrical energy and light energy into chemical energy.

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?