Physics, 08.09.2021 04:40 monserratmendezca20
14. An inventor develops a stationary cycling device by which an individual, while pedaling, can convert all of the energy expended into heat for warming water. How much mechanical energy is required to increase the temperature of 300 g of water (enough for 1 cup of coffee) from 20 C to 95 C? (1 cal = 4.186 J, the specific heat of water is 4 186 J/kg C)
Answers: 3
Physics, 22.06.2019 11:10
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
Physics, 22.06.2019 18:00
What structural formula represents 4 electrons shared between two atoms?
Answers: 1
Physics, 22.06.2019 22:00
Aspaceship starting from a resting position accelerates at a constant rate of 9.8 meters per second per second. how far will the spaceship travel if its final speed is 1 percent the speed of light (300,000,000 m/s)? a. 3.1 Γ 106 m b. 2.94 Γ 108 m c. 7.8 Γ 1010 m d. 4.6 Γ 1013 m
Answers: 1
14. An inventor develops a stationary cycling device by which an individual, while pedaling, can con...
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