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a battery with potential of 150 v is in a circuit with 97 milliamps flowing what is the power output of the
a beam is attached to a vertical wall with a hinge the mass of the beam is 1000 kg and it is 3 m long a steel support
a beam diameter 12 mm from a laser pointer is bounced off a polished steel ruler with one millimetre wide divisions
a beam of light that consists of a mixture of red green and violet light strikes a prism surrounded by air as shown
a beam of light originates from point p in a 3 mm thick glass block it undergoes total internal reflection at point q
a beam of light is traveling inside a solid glass cube having index of refraction 164 it strikes the surface of the
a beam of red light lambda700nm is incident at 60 degrees onto a layer of material with index of refraction n23 the
a beam of white light is incident on the surface of a diamond at an angle since the index of refraction depends on the
a bee loaded with pollen flies in a circular path at a constant speed of 320 ms if the mass of the bee is 133 mg and
besides light sources and detectors what are the main optical elements used in a typical optics experiment or an
a bicycle wheel was observed to rotate at 44 rotmin at t 0 s and 229 rotmin at t 70 s assume that the bicycle is
a current-carrying wire has been bent into the form shown infigure 1 with a half-circle of radiusr1 lying in thexy
a bicycle wheel has a radius of 033 m and a rim whose mass is 12 kg the wheel has 50 spokes each with a mass of 0010
bifocal glasses are used to correct both nearsightedness and farsightedness at the same time if the near points in the
a billiard ball of mass 163 g and radius 30 cm starts with a translational speed of 2 ms at point a on the track as
a billiard ball traveling at 300 ms collides perfectly elastically with an identical billiard ball initially at rest on
1 describe how an alternating generator works2 when an electric motor is operated at 1600 rpm the counter emf is 94v
the blades in a blender rotate at a rate of 7360 rpm when the motor is turned off during operation the blades slow to
block 1 with m1 50 kg is connected over an ideal pulley to block 2 with m260kg as shown assume that the blocks
a block is acted on by two forces as shown in the diagram below if the magnitudes of the forces are f1 495 n and f2
a block of aluminum is 7cm x 5cm x 5cm the initial temperature of the aluminum is -30oca how much heat must you add to
a block is attached to the end of a horizontal ideal spring and rests on a frictionless surface the other end of the
a block is attached to a spring and set in motion on a horizontal frictionless surface by pulling the block back a