Long-distance electric-power transmission lines always
long-distance electric-power transmission lines always operate at very high voltage. what are the advantages and disadvantages of such high voltages?
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a 15-kg mass attached to spring with a force constant of 20nm oscillates on a horizontal frictionless track at t0 the
two speakers are driven by a common oscillator at 800 hz and face each other at a distance of 125 m locate the points
the radii of the wheels of a compound wheel and axle are 2cm 5cmand 10cmit is found to have an efficiency of 90 if a
liquid-detecting prism devices may be used in a washing machine or other liquid-containing devices if no liquid covers
long-distance electric-power transmission lines always operate at very high voltage what are the advantages and
suppose a satellite is in a circular orbit 30 earth radii above the surface of the earth 30 earth radii from the center
a double-slit interference pattern has a fringe a ldquofringerdquo is an interference maximum spacing of 40 mm how far
a satellite is placed in a noncircular orbit about the earth the farthest point of its orbit apogee is 4 earth radii
an asteroid hits the moon and ejects a large rock from its surface the rock has enough speed to ravel to a point
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