Physics, 23.08.2021 14:00 shelbycg02
A lecture hall measures 40.0m X 20.0m. The density of air is. 1.20km3. What (a) the volume of the room in cubic feet and (b) the weight of air in the room in pounds?
Answers: 2
Physics, 21.06.2019 22:30
Distinguish between a transverse wave and a longitudinal wave.
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Physics, 21.06.2019 22:40
Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod
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Physics, 22.06.2019 05:00
Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
Answers: 1
Physics, 22.06.2019 15:30
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
A lecture hall measures 40.0m X 20.0m. The density of air is. 1.20km3. What (a) the volume of the ro...
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