A graduated cylinder contains water to the 15-cm'level. A stone was placed in the water, which rose to the 21-cm level. Then a cork stopper, with the same stone resting
on it so as to hold both submerged, was placed in the water. The water rose to the 26-
cmº level. What was the volume of the cork stopper, in cm"?
11
6
26
5
21

The mini-refrigerator fire was most likely caused by what type of wiring?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

The two required components for a generator