Review conceptual example 7 as an aid in solving this problem. a portable electric heater uses 18 a of current. the manufacturer recommends that an extension cord attached to the heater receive no more than 2.0 w of power per meter of length. what is the smallest radius of copper wire that can be used in the extension cord? (note: an extension cord contains two wires.)
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Physics, 22.06.2019 00:30
What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds
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Physics, 23.06.2019 00:00
Boiling water is an example of physical change. true or false
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Physics, 23.06.2019 00:30
Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.
Answers: 2
Review conceptual example 7 as an aid in solving this problem. a portable electric heater uses 18 a...
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