At equilibrium in a pendulum the potential energy is zero and the velocity is

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

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

Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.