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an electron is 2cm away from a line whose charge density is 3pccm it is moving away perpendicularly at 1000 kms how far
a 2kg wood block is attached to a 3 g bucket by a massless string rests on the durface of and inclined plan of 20
a fish takes the bait and pulls on the line with a force of 21 n the fishing reel which rotates without friction is a
the figure below shows a 62 kg rod of 100 m in length hinged to a vertical wall and supported by a thin wire the wire
two identical masses are connected to vertical springs each with a force constant k the coordinates x1 and x2 measure
a sugar solution with n142 contains an air bubble of radius 100cm where is the image of a sugar crystal 300 cm from the
a diving board of length l 300m is supported at a point a distance 100m from the end and a diver weighing 530n stands
a fisherman notices that his boat is moving up and down periodically owing to waves on the surface of the water it
a house has a floor area of 120 m2 and an outside wall that has an area of 31 m2 the earths magnetic field here has a
problem a small mirror is attached to a vertical wall and it hangs a distance of 159 m above the floor the mirror is
a proton travelling along the axis of a 2cm ring with a charge density of 5nccm is 5 cm from the center of of the ring
if a mass of 5 g causes a mass-spring system to oscillate with a frequency of 16 hz what is the spring constant of the
the rms electric field of an electromagnetic wave increases from 320 to 960 nc a determine the wave intensities for the
a charge q 200 uc is placed at the origin in a region where there is already a uniform electric field evec 100 ncihat
motion in more than one directiona cartoon coyote sets out to capture the elusive road-runner by wearing a pair of acme
a simple 15 m pendulum oscillates on earth where the acceleration due to gravity is 979 ms2 how many oscillations will
a flywheel has a constant angular deceleration of -201 rads2a find the angle through which the flywheel turns as it
potential energy curves are a useful tool for making sense of nuclear processes such as alpha-decay fission and fusion
in the system shown in figure a horizontal force fx with a magnitude of 100n acts on object of mass m2615kg the
some enterprising physics students working on a catapult decide to have a water balloon fight in the school hallway the
in the fusion of a deuterium nucleus one proton and one neutron with a tritium nucleus one proton two netrons the
what happens to water that flows out of a pipe at constant pressure or constant flow rate and then enters a restriction
a bullet of mass m 360times10-2kg is fired along an incline and imbeds itself quickly into a block of wood of mass m
two disks of identical mass but different radii r and 2r are spinning on frictionless bearings at the same angular