Two objects are shown in the figure. What happens to the gravitational force if the distance between objects M1 and M2 is doubled? Select one:

The objects will no longer have a gravitational force.

The gravitational force remains the same.

The gravitational force decreases.

The gravitational force increases.

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

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 .

Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)