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a new event has been proposed for the winter olympics anathlete will sprint 150 m startingfrom rest then leap onto a
the power in watts dissipated by a resistor is given by p iv the resistors used innbsp this experiment are 1 watt
a person is making homemade ice cream she exerts a force ofmagnitude 19 n on the free end of thecrank handle and this
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a carnot engine operates with an efficiency of 250 when the temperature of its cold reservoir is 263 k assuming that
a circularwire loop of radius 200 cm carries acurrent of 290 a it is placed sothat the normal to its plane makes an
three capacitors in series with capacitance 30micro farads50 and 60 are connected in series to a 210v independent
a person is making homemade ice cream she exerts a force ofmagnitude 22 n on the free end of thecrank handle and this
a heat engine operates in a carnot cycle between reservoirs oftemperatures 1000 k and 400 k it is found to discharge 20
an engine is used to lift a 2700 kg truck to a height of 30 mat constant speed in the lifting process the
a neutron star is a stellar object whose density is about thatof nuclear matter suppoe that the sun were to collapse
assume that a gold nucleus has a radius of 623 fm and analpha particle has a radius of 180 fm what energy must an
a woman stands in an elevaor that has a constant upwardacceleration while the elevator travels upward a distance of180m
a 500g bullet is fired horizontally into a 120kg wooden block resting on a horizontal surface the coefficient of
what is the minimum energy needed to create a electron-positronpair when the photon collides with an electron i know
an iceboat of mass 100 kg is at rest on a frictionless frozenlake when a sudden wind exerts a force fwind ofmagnitude
a force f of magnitude 204 n is applied to a block of mass100 kg in the opposite direction to the normal force on an
a charged isolated metal sphere of diameter 10 cm has apotential of 8000 v relative to v 0 at infinity calculate the
you are asked to design a spring thatwill give a 1050kg satellite a speed of 200 ms relative to anorbiting space
an old oaken bucket of mass 675kg hangs in a well a the endof a rope the rope passes over a frictionless pulley at the
a charge of 7 nc is placed uniformlyon a square sheet of nonconducting material of side 17 cm in the yz plane what is
two 150v batteries -- with their positive terminals in the same direction-- are inserted in series into the barrel of a
a lightbulb has a resistance of 260 when operating witha potential difference of 130 v what is the current in the
a singly charged ion of unknown mass moves in a circle ofradius 130 cm in a magnetic field of77 t the ion was