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a 770cm length of straight wire runs horizontally along a north-south line the wire carries a 325a current flowing
a light string can support a stationary hanging load of 246 kg before breaking an object of mass m 303 kg attached to
two charges q 80 microc are fixed a distance d 90 cm aparta with v 0 at infinity what is the electric potential at
1 viscoelasticity a deformation of cross-linked polymeric microgel particle carbopol is described by the kelvin-voigt
a a 351-m length of copper wire at 200degc has a radius of 023 mm if a potential difference of 70 v is applied across
a fly sits 92 cm from the center of a turntable through how many revolutions must the turntable rotate per minute in
a particle experiences two simultaneous harmonic motions xt x1t x2t where x1t cos3t and x2 cos32t pi6 simplify xt
an elevators cable snaps and its emergency brakes start gripping at the secondary line in order to slow its descent the
a person whose mass is m 595 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle
only two forces act on a 30-kg mass one of the forces is 90 n east and the other is 80 n in the direction of 62deg
a cube of mass m 725 kg is placed on an inclined plane of mass m 1247 kg which makes an angle 3980deg with the
a block is pushed up a frictionless 30deg incline by an applied force as shown if f 25 n and m 30 kg what is the
if you were to walk briefly in space without a spacesuit while far from the sun as an astronaut does in the movie 2001
a uniform rod of length l and mass m is nailed to a post so that two thirds of its length is below the nail what is the
a father pushes horizontally on his daughters sled to move it up a snowy incline as illustrated in the figure with h
a particle of charge 55 microc is released from rest at the point x 55 cm on an x axis the particle begins to move
an open organ pipe 0750 rm m long has its first overtone at a frequency of 441 rm hz what is the temperature of the air
if an isolated conducting sphere 10 cm in radius has a net charge of 79 microc and v 0 at infinity what is the
a parallel plate capacitor consists of two square metal plates of dimension 10 cm by 10 cm the plates are separted by a
a 5000 w electric heater is used for 32 hours calculate the energy consumed in this period the plates are seperated by
a speedboat moves on a lake with initial velocity vector v1x 927 ms and v1y -217 ms then accelerates for 533 seconds
during 809 seconds a motorcyclist changes his velocity from v1x -351 ms and v1y 137 ms to v2x -247 ms and v2y 265 ms
at the surface of an electrically charged solid conducting sphere the electric field has a magnitude of 458 nc and the
a 108 microf capacitor is connected in series with a 218 microf capacitor the 108 microf capacitor carries a charge of
a 150-kg block of ice at 0 degc melts to liquid water at 0 degc inside a large room that has a temperature of 200degc