A 42,00 Kg Train Car Travelling At 10 M/s Toward Another Train. After The Two Cars Collide, They Couple Together And Move Along At 6 m/s. What Is The Mass Of The Second Train Car?

The differences between  a compression wave and a transverse wave?

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

Write the correct abbreviation for each metric unit