Physics, 24.06.2019 17:00 silasjob09
Electric power companies measure energy consumption in kilowatt-hours, denoted kwh. one kilowatt-hour is the amount of energy transferred by 1 kw of power in a period of 1 hour. a power company billing statement reports auser's total energy usage to be 1500 kwh. find the amount of energy in joules used during the billing period.
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Physics, 21.06.2019 21:30
According to social exchange theory, altruistic behaviors benefit the individual who performs them.
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Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
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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.
Answers: 3
Physics, 22.06.2019 21:00
The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.
Answers: 2
Electric power companies measure energy consumption in kilowatt-hours, denoted kwh. one kilowatt-hou...
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