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Physics, 21.06.2019 17:00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 22.06.2019 17:30
Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?
Answers: 2
Physics, 22.06.2019 23:30
Which model displays the change in a gas when the temperature of the gaseous system decreases?
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Physics, 23.06.2019 00:00
You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked
Answers: 2
The charge q4 is now replaced by charge q5 which has the same magnitude, but opposite sign from q4 (...
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