Physics, 24.01.2020 04:31, Jaedenaleinson
Atoy rocket, mass 0.8 kg, blasts up at a 45 degrees from ground level with a kinetic energy of 41 j. to what maximum vertical height does it rise?
Answers: 1
Physics, 22.06.2019 19:50, fili20
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 23:10, lukevader311
What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon
Answers: 1
Atoy rocket, mass 0.8 kg, blasts up at a 45 degrees from ground level with a kinetic energy of 41 j....
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