A skateboarder with a mass of 72 kg traveling at 2.8 m/s approaches a hill and rides down it The hill is 17 m high. Assuming a complete transformation of mechanical energy into kinetic energy, what is the skateboarders velocity at the bottom of the hill2

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates