When a substance goes directly from a solid state to a gas state, as dry ice

1 answer:

4 0

Answer: Fusion, vaporization, and sublimation are endothermic processes, whereas freezing ... Changes of state are examples of phase changes, or phase … ... liquid to gas, or solid to gas) requires an input of energy; it is endothermic. ... rate: A–B: heating solid ice; B–C: melting ice; C–D: heating liquid water; D–E: ...

Explanation:

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Two 1.0 kg masses are 4.0 m apart on a frictionless table. Each has 1.0μC of charge. Part A What is the magnitude of the electri

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Force between two charges is given by

$F =\frac{kq_1q_2}{r^2}$

$F =\frac{9*10^9* 1* 10^{-6}* 1 * 10^{-6}}{4^2}$

$F = 5.625 * 10^{-4} N$

Now in order to find the acceleration of each mass

we can use

F = ma

$5.625 * 10^{-4} = 1 * a$

$a= 5.625 * 10^{-4} m/s^2$

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What often happens to light when it travels from one medium to another

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Answer:

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What is meant by the statement that you don’t “own” the atoms that make up your body?

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Answer:

there are as many atoms in a normal breath of air as there are breathfuls of air in the atmosphere of the world

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The electric motor of a model train accelerates the train from rest to 0.685 m/s in 21.5 ms. The total mass of the train is 875

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