A 1.6 kg particle has a velocity of vr = 1.39 m/s and v, = -4.12 m/s.
Find the magnitude of its total momentum.
Answer in units of kg. m/s.

What does the law of conservation of mass state?

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?