Physics, 14.07.2019 04:30 farihasy6508
Auniform electric field in an area has a magnitude of 10 n/c and is directed upward. a charge brought into the area experiences a force of 2.0 n upward. the charge must be
Answers: 1
Physics, 22.06.2019 07:00
World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s
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Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
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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 22:00
Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.
Answers: 2
Auniform electric field in an area has a magnitude of 10 n/c and is directed upward. a charge brough...
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