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a dentist uses a mirror to examine a tooth the tooth is 116cm in front of the mirror and the image is formed 121 cm
a 30 kg particle withvelocity v 50 ms ihat -60 ms jhat isat x 30 m y 80 m it is pulled by a 70 n force in thenegative
a gas is contained in a closed cylinder with a mobile piston at oneof its ends for the following conditions indicate 1
a weather vane initially at rest has a moment of inertia of0124 kg middot m2 about itsaxis of rotation a 250 g piece of
a 30 kg particle with velocity v 50 ms ihat - 60 msjhat is at x 30 m y 80 m it is pulled by a 70 n force inthe
the 11 kg balls are attached to the ends of a thin rod of length 420 cm and negligible mass the rod is free to rotate
a neodymium-glass laser emits short pulses of high-intensity electro magnetic waves the electric field of such a wave
the magnitude of the electric field of an electromagnetic waveincreases from 315 to 935 nc a determine thewave
a laptop computer communicates with a router wirelessly bymeans of radio signals the router is connected by cable
a typical power transmission line carries a current of 1000 a about 300 meters above the ground the magnetic field
a pulley with a rotational inertia of 32times10-3kg m2 about its axleand a radius of 80 cm is acted on by a force
1 when a baseball player hits a home run the baseball receives agreater impulse from the bat than the bat does from
a block of mass 250 kg is pushed 220 m along a frictionless horizontal table by a constant 160-n force directed 250deg
on planet tehar the acceleration of gravity is the same as that onearth but there is also a strong downward electric
a car m 2740kgis moving at a speed of 356ms on the highway the driver notices slower traffic ahead andapplies the
a football player m115g is sitting on the ground a playerkicks the ball with a force of 36 n the force acts over a
two large parallel conducting plates are 23 cm apart and have charges of equal magnitude and opposite sign on their
a wave function for a free particular particle isgiven by psix alpha pi14e-alphax-a22 where alpha is a real
a pulley with a rotational inertia of32times10-3 kg m2 about its axleand a radius of 60 cm is acted on by a force
one kilowattmiddothour kwmiddoth is the amount of work orenergy generated when one kilowatt of power is supplied for a
a 30 kg particle wiith velocity v50 msi - 60 msj is at x 30 m y80 m it is pulled by a 70 n force in the negative x
in a particle accelerator the protons travel around a circularpath of diamter 23 meters in a chamber of 10-6 mmhg
an object with mass 40 kg is attachedto a spring with spring stiffness constant k 300 nm and is executing
a 60-v battery is connceted in series with a 29-mh inductor a 110-omega resistor and an open switchnbsp after the
police lieutenants examining the scene of an accident involvingtwo cars measure the skid marks of one of the cars which