Suppose you are trying to push a car that won't start to a mechanic. If it has a mass of 900 kg, how hard will you need to push it to get it to accelerate at 0.5
m/s^2?

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?

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Ways that industry and agriculture use physical properties to separate substances