What is the period of a wave if 3 waves pass every 6 seconds?
a. 0.5 s
b. 2 s
c. 3 s
d. 6 s

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?