5) Quiz - NO links Weather is the predicted atmospheric conditions for short periods of time usually 15 days or less.

True

False

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

What are atoms of the same element with varying number of neutrons

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?