(a) Does an electric field exert a force on a stationary charged object? YES ( F = Eq)
(b) Does a magnetic field do so?- NO ( F= qvB)
(c) Does an electric field exert a force on a moving charged object? YES
(d) Does a magnetic field do so? YES ( F = qvB)
(e) Does an electric field exert a force on a straight current-carrying wire? ( NO)
(f) Does a magnetic field do so? Yes
(g) Does an electric field exert a force on a beam of moving electrons? Yes
(h) Does a magnetic field do so? YeS
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Answer:
Ideal machines are said to have parts which are weightless , frictionless and strings if any are inextensible. Practical machines have parts which have weights, friction and it causes some loss of work done.
Explanation:
Answer:
a = -36.8 m/s/s
Explanation:
Initial speed of the car
finally car will stop after it cover the distance
so we have
here we have
