A celestial body is a stationary homogeneous spherical solid of mass M measured in kilograms (kg) and radius R measured in kilometers (km) with no atmosphere. Use the energy conservation law

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

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

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.