Physics, 27.02.2021 09:00 angoliabirtio
A 150 ml ice cube is taken from a 0°C freezer and left on the counter. How much energy does it take from its surrounding environment in order to turn into liquid? (1 ml = 1 g) The latent of fusion is 335,000 J/kg.
Answers: 2
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Physics, 23.06.2019 04:20
The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c
Answers: 1
Physics, 23.06.2019 04:31
Ivana walks 2km north then turns around and walks 3km south
Answers: 1
A 150 ml ice cube is taken from a 0°C freezer and left on the counter.
How much energy does it take...
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