Moby travels down a halfpipe on his skateboard in five seconds. His speed at the bottom is 10 m/s. Moby then goes up the other side of the halfpipe and stops. If that trip also took five seconds, what was Moby acceleration?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Why are graphs useful when interpreting data

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