If a cart at the top of a hill has 50 newtons of pot. energy what will it have when it comes down?

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

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?