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an insulated vertical piston cylinder device initialy contains 10kg of water 6 kg of which is in the vapor phase the
two circular hoops with masses and radii in the ratios m2m14 and r2r14 rotate with angular speeds in the ratio 212 what
in an experiment designed to measure the strength of a uniform magnetic field produced by a set coils the electron are
a set of narrow vertical slits is located a distance d from a screen all the slits have the same width equal to 325
a long wire is known to have a radius greater than 40 mm and to carry a current that is uniformly distributed over its
after completing the experiment with the single slit you wish to determine the width of the slit recall that the
a positive charge q32 x 10-19 c moves with a velocity v2i 3j - kms through a region where both a uniform magnetic
a you operate a small grain elevator near champaign illinois one of your silos uses a bucket elevator that carries a
two rods ab and bc have charges 2q and -2q uniformly distributed on them they are bent in the shape of arcs of a circle
a thin spherical shell has a radius r3 m a constant force f2 n is applied to the shell always tangential to the surface
when at rest a proton experiences a net electromagnetic force of magnitude 94 x 10-13 n pointing in the positive x
a single-turn current loop carrying a current of 567 a is in the shape of a right triangle with sides 628 114 and 130
a ray of light strikes a plane mirror at a 45deg angle of incidence the mirror is then rotated by 23deg in the
a cowboy at a ranch fills a water trough that is 11 m long 68 cm wide and 44 cm deep he uses a hose having a diameter
an empty rubber balloon has a mass of 00109 kg the balloon is filled with helium at a density of 0178 kgm3 at this
a 1500 kg vehicle is making a circular turn on a flat roadway the road has a radius of curvature of 50m and the static
engineers have developed a bathyscaph that can reach ocean depths of 53 mi if the density of seawater is about 1030
a piston a has a diameter of 076 cm as shown a second piston b has a diameter of 21 cm in the absence of friction
a puck on a horizontal frictionless table is attached to a string that passes through a hole in a table initially the
a pencil 157 cm long is released from a vertical position with the eraser end resting on a table the eraser does not
a solid sphere and a solid cylinder of the same mass and radius roll without slipping at the same speed it is correct
an object weighing 32 lb is released from rest 50 ft above the surface of a calm lake before the object reaches the
an electric fan is running on high after the low button ispressed the angular speed of the fan decreases to 838 rads
an automatic drier spins wet clothes at an angular speed of 52rads starting from rest the drier reaches its operating