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Physics, 22.06.2019 16:20
What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g
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Physics, 22.06.2019 20:00
Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.
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List and describe three ways that humans can change ecosystems and three ways that humans can protect ecosystems.
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Physics, 23.06.2019 09:00
In the cores of extremely hot red giants, nuclear reactions convert helium to
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What is the range of star masses for high- mass stars? between 2 and about 10 solar masses between 2...
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