In order to rotate the polarization axis of a beam of linearly polarized light by 90.0° , a student places sheets p1 and p2 with their transmission axes at 45.0° and 90.0° , respectively, to the beam’s axis of polarization.
(a) what fraction of the incident light passes through p1
(b) through the combination?
(c) repeat your calculations for part (b) for transmission-axis angles of 30.0° and 90.0°, respectively.

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

If forces acting on an object are unbalanced. true or false