A factory replaces two sets of gears in a machine so the gears in each set were touching. Each set has two gears, so there are four gears altogether. In Set A, both gears are the same size. In Set B, the top gear is the same size as the gears in Set A, but the bottom gear is larger than the other three. The diagram above shows the energy of the molecules of the gears before they touched. After a while, which of the two bottom gears will be cooler, and why?
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Physics, 21.06.2019 21:30
Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
Answers: 1
Physics, 22.06.2019 00:30
What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds
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Physics, 22.06.2019 01:00
First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit
Answers: 2
Physics, 22.06.2019 02:30
Gunpowder residue is most likely to show up where on a shooters hands
Answers: 1
A factory replaces two sets of gears in a machine so the gears in each set were touching. Each set h...
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