The diagram below shows the location of three stars in space.
the light from star 2 reaches star 1 in 63 years. if star 3 is 75 light years from star 2, which of these conclusions about the stars is correct? (2 points)
star 2 is 75 miles away from star 3.
star 2 is 63 kilometers away from star 3.
star 1 is 12 light years away from star 3.
star 1 is 138 light years away from star 3.

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?