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a cell of emf 30 volts and internal resistance of 001 omega is connected through an ammeter of 005 omega internal
a 2 kg block is initially at the bottom of a 30 incline with a speed of 12ms going up the incline the coefficient of
a piece of styrofoam is completely submerged under water rho 1000 kgm3 it is held under because it is attached to a
a bar is 20 centimeter thick and 30 centimeter wide the bar has a uniform density in width and thickness but has a mass
a car parked in the sun absorbs energy at a rate of 590 watts per square meter of surface area the car reaches a
in a large centrifuge used for training pilots and astronauts a small chamber is fixed at the end of a rigid arm that
an initially stationary box of sand is to be pulled across a floor by means of a cable in which the tension should not
a spider hangs from a strand of silk whose radius is36x10-6 m the density of the silk is 1500kgm3 when the spider moves
to decide the location of her center of mass a physics student lies on a lightweight plank supported by two scales250
de broglie postulated that the relationship lambda hp is valid for relativistic particles determine the de broglie
a father clock is controlled by a swinging brass pendulum that is 11 meter long at a temperature of 23degcdetermine the
an l-r-c series circuit has a resistance of 147 omega an inductance of 0780 h and a capacitance of 140times10-2 microf
a narrow but solid spool of thread has a radius r and mass m if you pull up on the thread therefore that the center of
the sound intensity level at a rock concert is 114 db while that at a jazz fest is 845 db find the ratio of the sound
a bat emits a sound whose frequency is 726 khz the speed of sound in air at 200 oc is 343 ms however the air
a photon has a wavelength lambda and an energy e before scattering from a free electron after scattering through a
a man stands between a vertical mirror 080 meter tall and a distant tree whose height is h he is 285 meter from the
as a marble with a diameter of 16 centimeter rolls down an incline its center moves with a linear acceleration of 33
a 320 kilogram wheel basically a thin hoop with radius 139 meter is rotating at 280 revmin it must be brought to a stop
a movie camera with a single lens of focal length 75 millimeter takes a picture of a 180 centimeter high man standing
a man is leaning against the vertical smooth wall his back is touching the wall and his feet are away from the wall
a 010 kilogram balloon is filled with helium density 0179 kgm3 if the balloon is a sphere with a radius of 63 meter
assume that when you ride on your 760-kilogram bicycle the weight of you and the bicycle is supported equally by the
a stationary horn emits a 113 hertz tone find what frequency is heard by a passenger on a train which is moving towards
a string 15 meter long with a mass of 25 gram is stretched between two fixed points with a tension of 99 newton obtain