Physics, 09.04.2020 22:10 uehlingt39
Um drone fez três voos sucessivos, descritos pelos seguintes deslocamentos: 3,2 km a 45o ao sul do leste; 5,3 km a 26o ao norte do oeste; 2,6 km a 18o ao leste do sul. Determine o vetor deslocamento resultante.
Answers: 1
Physics, 22.06.2019 19:50
Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)
Answers: 1
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 21:30
Which of the following best describes the circuit shown below?
Answers: 3
Physics, 23.06.2019 00:00
What energy transformations occur each time the skateboarder rolls up the ramp?
Answers: 2
Um drone fez três voos sucessivos, descritos pelos seguintes deslocamentos: 3,2 km a 45o ao sul do l...
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