Physics, 27.07.2019 13:20 xcoder1732
Atea kettle is warmed on an electric stove. after a while, water vapor builds inside the kettle and causes a whistle in the lid to make a sound. how does this demonstrates the first law of thermodynamics?
Answers: 2
Physics, 22.06.2019 05:00
In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.
Answers: 1
Physics, 22.06.2019 17:40
Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?
Answers: 1
Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
Atea kettle is warmed on an electric stove. after a while, water vapor builds inside the kettle and...
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