If 2 kilograms of water is to be heated from 24.0°C to 100.0°C to make a cup of tea,
how much...
Physics, 23.05.2020 01:04 AgentPangolin
If 2 kilograms of water is to be heated from 24.0°C to 100.0°C to make a cup of tea,
how much heat must be added? (Water's specific heat is 4186 J/kg°C)
Answers: 2
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Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
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Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
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Mathematics, 30.05.2020 18:57
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