How do you do find Tension force in part C? Please share how you worked it out please.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

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 will a positive and a negative charge do if they are separated from each other?