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an electron is released from rest in a uniform electric field ofmagnitude 300 104 nc calculate the magnitude of the
an electron is moving through a region of space which possessesa uniform electric field and uniform magnetic field the
four equal masses m are located at the corners of asquare of side script i connected by essentially massless rodsfor
an oscillating lc circuit has a current amplitude of850 ma a potential amplitude of 250mv and a capacitance of 235 nfa
the chamber of a rock-tumbling machine is a hollow cylinder withmass 60 g and radius 71 cm the chamberis closed off by
an electric motor is used to lift an elevator and its load to aheight of 20m the time taken for the job is 20swhat is
the drawing shows three situations in which a block is attached toa spring the position labeled ldquo0 mrdquo
a 2000kg car starts from rest at the top of a 500m longdriveway that is sloped at an angle of 20 degrees with
water is circulating through a closed system of pipes in a two floor apartment on the 1st floor the water has a gauge
a 120-v motor has mechanical power output of 300 hp it is 800 efficient inconverting power that it takes in by
car headlights use concave mirrors theres a concave mirror in the back of the headlight socket and the actual light
light enters a container of benzene at an angle of 43circto the normal the refracted beammakes an angle of 27circ with
a sand mover at a quarry lifts 200e3 kg of sand per minute averticle distance of 120 m the sand is initially at rest
a continuous stream of electrons flows along a long straight paththrough a piece of laboratory equipment 5750e18 ofthem
an 836-mh inductor and a 622-microf capacitor are connected in series with agenerator whose frequency is 355 hz therms
a micrometer is connected to the movable mirror of aninterferometer when the micrometer is tightened down on athin
a steel wire of length l with a cross-sectionaldiameter d is wrappedover a light frictionless pulley wiht one end of
binoculars denoted as 7 x 50 have a total magnification of 7 times and objective lenses of 50- mm diameter what is the
a 300 kg hammer strikes a steel spike 230 cm in diameter while moving with a speed of 200 ms the hammer rebounds with
truefalse1 a cyclotron operates with a given magnetic field and at agiven frequency if r denotes the radius of the
a nozzle of inner radius 105 mm is connected to a hose of inner radius 802mm the nozzle shoots out water moving at 250
two objects moving with a speed vtravel in opposite directions in a straight line the objects stick together when they
a find the angular speed about the polar axis as well as the translational speed and acceleration of a point on the
a student ofmass m standsat one end of a long log of length l and mass m which is floating on the campuspond at right
at what time after the discharge begins is the energy stored in the capacitor reduced to half its initial