A 1200 kg car is being towed to the shop. The tow truck applies 3200 N of force in order to keep the car moving at a constant velocity. (Friction is present.) A) Write the vertical Fnet equation for the car.
B) Write the horizontal Fnet equation for the car.
C) Determine the coefficient of kinetic friction between the car's tires and the road.

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

What equation is used to calculate the weight of an object on a plant ?