Object A attracts object B with a gravitational force of 5 newtons from a glven distance. If the distance between the two objects Is reduced In half, what will be the changed force of attraction between them?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Positrons are spontaneously emitted from the nuclei of

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?