All contraceptives prevent stis true or false

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

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

What properties of a moving object are used in determining the object's energy of motion