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Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
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Physics, 22.06.2019 05:30
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Answers: 1
Physics, 22.06.2019 11:00
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Physics, 22.06.2019 12:10
Energy flows from the producer level to the level. is called
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History, 03.02.2021 19:00
History, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00
History, 03.02.2021 19:00
Chemistry, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00
Mathematics, 03.02.2021 19:00