Using the data provided in the graph and the table, interpolate to find the potential energy (u) at a height (h) of 2.5 meters and extrapolate to find the potential energy at a height of 4.5 meters.

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

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?

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?