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ibarral37102
04.01.2020 •
Physics
Simone created a chart to summarize the energy transformations that take place when energy from the wind is used to generate electricity. which best completes the chart?
a) nuclear energy transformed to electrical energy
b) chemical energy transformed to electrical energy
c) radiant energy transformed to mechanical energy
d) kinetic energy transformed to mechanical energy
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Ответ:
d) kinetic energy transformed to mechanical energy
Explanation:
Wind energy comes from its movement, so kinetic energy
Em = K = ½ m v²2
This energy spins the mill aspadle that this movement of the rotor within a magnetic field creates electricity in accordance with Faraday's law.
Consequently, from the above we should make a graph of the wind speed (kinetic energy) according to the electricity produced
The correct answer is d
Ответ:
The linear momentum is zero
Explanation:
Because
When a rigid body is rotating about a fixed axis passing through point O, the body’s linear momentum given as L = mvG
But VG= 0 so
Linear momentum is zero