A body of 6 kg mass moves by8m/s and another bodyof 10 kg moving at 4 m/s in the opposite direction .if the first body caused by the collisionof return back along the same path with a speed of 5 m/s find the velocity of the second body after impact​

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve

Is the number of complete movements of a wave per second.

The momentum of a man riding his bicycle downhill can be calculated. the bicycle and the man have a combined mass of 40 kg. the velocity of the bicycle is 10 m/s. calculate the momentum.