Physics, 26.08.2019 02:50 JayceMeyers06
What type of evidence suggests that the north america and africa used to be next to each other
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Physics, 22.06.2019 10:00
Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points
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Physics, 22.06.2019 19:30
Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?
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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 23:40
Which type of energy is transferred by convection currents?
Answers: 2
What type of evidence suggests that the north america and africa used to be next to each other...
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