Evaluate cos(30°).
O A. 0.58
O B. 0.50
O C. 0.87
O D. 1.00

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

When does your body conduct current more readily?

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?