Physics, 09.08.2021 01:00 happy121906
What are some regular devices in which a voltage is induced in a coil by a changing magnetic field?
Answers: 3
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
Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane
Answers: 1
Physics, 23.06.2019 11:30
A: all waves on the electromagnetic spectrum travel at the same speed in a vacuum. the speed of these waves in a vacuum is 3x108 m/s. as the wavelength of a wave doubles, how does the speed and frequency of the wave change?
Answers: 1
Physics, 23.06.2019 12:30
1. when light strikes a pane of glass, it what? 2. when light strikes a translucent pane of glass 3. when light strikes a blue opaque surface only blue light is 4. when light strikes a prism it ! will give brainpower answer if answered all correctly!
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What are some regular devices in which a voltage is induced in a coil by a changing magnetic field?...
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