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Physics, 22.06.2019 02:20
According to newton’s first law of motion, which force is expected to cause a body to accelerate?
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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?
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Why should the wavelength scale of spectroscope be calibrated
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Physics, 23.06.2019 02:20
What are known as the properties of substances that describe a substance et does not change that substances?
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What happen to image when aperature is reduced?...
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