Physics, 17.03.2020 08:58 crisnoobymcnooov72un
How much mass of ice at 0℃ must melt when ∆Q=948000 J of heat energy is added to it?
Answers: 1
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Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance
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Physics, 22.06.2019 19:50
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.
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Physics, 22.06.2019 23:30
Which statement correctly describes the interaction between magnetic poles? north and south poles attract each other. north and south poles repel each other. two north poles will attract each other. two south poles will attract each other.
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Physics, 23.06.2019 07:00
If you drive 12 miles north and 35 miles east, what is the direct distance between you and your starting point?
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How much mass of ice at 0℃ must melt when ∆Q=948000 J of heat energy is added to it?...
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