Certain materials can become superconductors under what conditions? a. when it is very hot c. under very high pressure b. when it is very cold d. under very low pressure select the best answer from the choices provided a b c d

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?