Describe the interaction between Jupiter and Comet Shoemaker-Levy 9
What will be an ideal response?
When the comet passed close to Jupiter in 1992, gravitational tidal forces tore the nucleus apart, leaving it in fragments. On its approach in 1994, it struck the planet. Vibrations in the interior and atmospheric effects lasted for days. Huge fireballs were observed from Earth. Debris from the comet spread completely around the planet, taking years to settle out.
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Describe how the motion of Uranus led to the discovery of Neptune
What will be an ideal response?
A light body sliding on a smooth horizontal surface collides with a heavy body. During the instant of contact the force exerted by the light body on the heavy body is ________ (equal to, greater than, less than) the force exerted by the heavy body on the light body.
Fill in the blank(s) with the appropriate word(s).
Doubling the momentum of a particle:
a. does not change its relativistic total energy. b. quadruples its relativistic total energy. c. doubles its relativistic total energy. d. requires less of a speed increase as the speed increases.
What is a heat engine?
a. A machine that heats up as it does work. b. A machine that produces heat. c. A machine that destroys heat, cooling its surroundings. d. A machine that converts heat to work. e. A machine that transfers heat to surrounding cooler objects.