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a solenoid of inductance l 50 mh has a magnetic energy u 3 x10-4 j with a density u 00042 jm3 what is the winding
a horse draws a sled horizontally across a snow-covered field the coefficient of friction between the sled and the snow
a force given by fx 5x3 in nm3 acts on a 1-kg mass moving on a frictionless surface the mass moves from x 387 m to x
a transformer changes the 10000 v power line to 120 v if the primary coil contains 750 turns howmany turns are on the
a 227-kg block m1 and a 587-kg block m2 are connected by a massless string applied forces f1 101 n and f2 483 n act
a particle of mass m is subjected to a force acting in the x-direction fx 277 0351x n find the work done by the force
a string of length 100m has a linear mass density of 25gm the string is fixed at the top and has an object of mass 0200
an artificial satellite circling the earth completes each orbit in 128 minutes the radius of the earth is 638 106 m the
m1 2600 kg m2 1310 kg r 012 m and the mass of the uniform pulley m 500 kg object m2 is resting on the floor and
a potters wheel -- a thick stone disk of radius 0500 m and mass 120 kg -- is freely rotating at 500 revmin the potter
in recent years a number of nearby stars have been found to possess planets suppose the orbital radius of such a planet
saturn makes one complete orbit of the sun every 294 years calculate the radius of the orbit of saturn hint it is a
a long straight horizontal wire carries a current of 285 directed toward the right an electron is traveling in the
a jogger is running around a circular track of circumference 470 m if the jogger has a speed of 8 kmh what is the
a ball moving at a speed of 30 ms hits an identical stationary ball after the collision the stationary ball moves at
a solid cylinder of mass 10 kg and radius 50 cm rotates with angular speed of 375 revs per minute an object is then
a block of mass 90 kg is placed on a horizontal table and is connected to a second hanging block with mass m by a cord
a for the helium-neon laser estimate the doppler broadening of the output wavelength 6328 nm at t 243 kb estimate the
imagine that you calibrate a constant-volume gas thermometer in dry ice which has a temperature of -800degc and the
what is the net force acting on a 5-kg objest falling ona earthb what is the mass of object on moonc what is the net
discuss the functions of a thermoflask in terms of conduction convection and radiation what improvements would you add
a 10kg block of ice is placed in a 001m3 vat of boiling water to cool it what is the final equilibrium temperature of
describe in detail an experiment in which you could determine the power for a period of several hours you must be able
consider a cargo ship with a mass of 50times108kg if it is pushed by a tugboat motor force 80times106 n and is subject
a constant force is applied to an object causing the object to accelerate at 60 ms2a what will the acceleration be if