A 2.1 kg sample of water at 35 degrees Celsius is poured into a lake. The temperature of the lake water is 10 degrees Celsius, and it remains essentially constant as the 2.1 kg sample cools down within it. What is the entropy change of the lake water? Let the specific heat capacity of water = 4190 J/(kg*K)
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Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
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Physics, 22.06.2019 06:00
The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.
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Physics, 22.06.2019 09:30
The necleus of an atom is made up of what subatomic particles?
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Physics, 22.06.2019 09:40
Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.
Answers: 3
A 2.1 kg sample of water at 35 degrees Celsius is poured into a lake. The temperature of the lake wa...
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