Answers by Kevin Wittek
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Answers by Kevin Wittek

Answers by Kevin Wittek
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The armature windings of a dc motor have a resistance of 5.0 Ω. The motor is connected to a 120-V line, and when the motor reaches full speed against its normal load, the back emf is 108 V. The load is
answered Jul 22, 2021
2 votes
169k views
In a typical Van de Graaff linear accelerator, protons are accelerated through a potential difference of 20 MV. What is their kinetic energy if they started from rest? Give your answer in (a) eV, (b) keV,
answered Jun 11, 2021
3 votes
69.6k views
State a situation in which force is applied on a body but no work is done ​
answered Apr 14, 2021
5 votes
61.6k views
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