Physics, 12.01.2021 22:00 hannnahbeela
When exposing a large and a small water sample to the same flame for the same amount of time, the temperature change in each sample should be fill in the blank
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When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
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What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
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How many neutrons does plutonium -196 with an atomic number of 78.
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The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
When exposing a large and a small water sample to the same flame for the same amount of time, the te...
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