Before there was central heating, hot water bottles were used to keep people warm at night. these flat containers were filled with hot water and placed at the foot of the bed, under the blankets. how was the heat energy transferred from the hot water bottle into the space under the blankets?
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Physics, 21.06.2019 22:30, smusisca53
Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?
Answers: 1
Physics, 22.06.2019 04:50, badpotterchris
Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k
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Physics, 22.06.2019 08:30, fernandoramirez086
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
Answers: 3
Physics, 22.06.2019 09:00, jaeana
Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
Answers: 1
Before there was central heating, hot water bottles were used to keep people warm at night. these fl...
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