The period of oscillation of a long thread is equal to 3 s. How many times does that pendulum swing in 2 minutes?

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.