Physics problem: piston? the piston of a hydraulic automobile lift is 0.300 m in diameter. 1. what gauge pressure, in pascals, is required to lift a car with a mass of 1200 kg?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation