Two titanium spheres approach each other head-on with the same speed and collide elastically. after the collision, one of the spheres, whose mass is 351 g, remains at rest.

Apassenger walks toward the rear of a moving train. describe her motion as seen from a reference point on the train. then describe it from a reference point on the ground

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

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)