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an object of mass m25kg is moving along a straightroad in a direction pointing 18o north of east a forcewhose magnitude
two identical pucks are on an air table puck a has an initialvelocity of 23 ms in the positivex-direction puck b is at
a small glider is placed against acompressed spring at the bottom of an air track that slopes upwardat an angle of 330
a 17 kg body is moving through space in the positive direction ofan x axis with a speed of 310 ms when due to an
the takeoff speed for a jet liner is 100 ms the mass of the airliner 30 x 103kg coefficient of friction between its
a tennis ball initially moves with a velocity of 280 ms horizontally to the right a tennis racketstrikes the ball
a bullet of mass 55 g is fired horizontally into a 21 kg wooden block at rest on a horizontalsurface the coefficient of
a portable electric heater is powered by a 45 v battery ithas four identical heating elements inside wired in series if
there are two light bulbs in a circuit powered by one battery one light bulb is a 100 watt light bulb and the other a
the linear momentum of a 1300 kg carincreased by 630times103 kg ms in137 s what is the magnitude of the constant force
a rubber ball of mass 375 g is dropped from a height of 180 m onto a floor thevelocity of the ball is reversed by the
two spheres are mounted on identical horizontal springs and rest ona frictionless table as in the drawing when the
a bullet of mass 63 g is fired horizontally into a 12 kg wooden block at rest on a horizontal surface the coefficient
a 60-kg object undergoes an acceleration of 20 ms2what is the magnitude of the resultant force acting
in the absence of a nearby metal object the two inductancesla and lb in a heterodynemetal detector are the same and the
two packing crates of masses m1 100 kg and m2 600 kg are connected by a light string that passes over a frictionless
determine the reading of the constructed ammeter inaperes assuming that the deflection represents 075 amperehint use
a crane lifts a 10000 kg pile driver to a height of 10 metersevery cycle and then releases it to a free fall and drive
a laptop computer communicates with a router wirelessly bymeans of radio signals the router is connected by
a lead bullet having a velocity magnitude of 360mscrashes into a steel wall half of the bullets kinetic energy goesinto
in an experiment of combustion a mixture of gasoline and oxygen ina pump at constant volume surrounded by water during
a parallel-plate capacitor in air has circular plates of radius 25cm separated by 13 mm charge is flowing onto the
a 175 kg blcok is at rest on a ramp of height h when the block is released it slides without friction to the bottom of
a car can decelerate at -500 ms2 with outskidding when coming to rest on a level road what would be the magnitude of
a wheel rotating with a constant angular acceleration turns through20 revolutions during a 3 s time interval its