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Physics, 21.06.2019 19:10
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745Β°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 Γ 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
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What is a possible result of higher air temperature caused by global warming
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Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack
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Physics, 22.06.2019 12:00
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
Find the time interval, given that the average speed is 3m/s and the distance is 12m...
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