A 8,500 kg. railroad car traveling at a velocity of 12m/s strikes a second boxcar at rest. If the two cars stick together and move off with a velocity of 8m/s, what is the mass of the second car

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.