HELP PLEASE !! During the filming of a motion picture, a stuntman is driving a motorcycle on top of a train while the train is moving. The train is moving east at 11.3 m/s relative to the ground. If the motorcycle is moving west at 17.3 m/s relative to the train, what is the velocity of the motorcycle relative to the ground? Assume east is positive.

Hint: Use vector addition and draw a picture!

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus

Aball of mass 0.3kg is released from rest at a height of 8m. how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s