Alfred The Astronaut has a mass of 100 kg and is moving at 10 m/s toward Bertha the Cosmonaut who is at rest and has a mass of 150kg. As he
passes Alfred holds onto Bertha in an INELASTIC collision. What is the
velocity of the astronauts after the collision

Atomic nuclei of almost all elements consist of

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .