Answers: 3
Physics, 21.06.2019 23:00
Athermometer is removed from a room where the temperature is 70Β° f and is taken outside, where the air temperature is 10Β° f. after one-half minute the thermometer reads 60Β° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) Β° f how long will it take for the thermometer to reach 30Β° f? (round your answer to two decimal places.)
Answers: 3
Physics, 22.06.2019 05:40
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
Answers: 1
Physics, 22.06.2019 10:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
A police officer uses a radar gun to determine the speed of a car. A specialized radar gun uses ultr...
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