Compare the applications of alpha, beta and gamma radiation

Which word expression describes how much to calculate pressure

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory

Which of the following list the divisions of the geologic time scale in order from longest to shortest