Two polarizers have their transmission axes at an angle of . unpolarized light of intensity i is incient on the firsit polarizer. what is the intensity of the light transmitted by the second polarizer? a. i cos o b. 0.5 i cos c. 0.25 i cos-o d. i cose e. 0.5 i cose

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

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