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an electron of mass 911x10-31 kg has an initial speed of 300x105 ms it travels in a straight line and its speed
the secondary voltage of an ignition transformer in a furnace is 145 kv when the primary operates at an rms voltage of
a 685 kg astronaut is doing a repair on the space station she throws a 225 kg tool away from her at 320 ms with what
an alternating source drives a series rlc circuit with an emf amplitude of 607 v at a phase angle of 333deg when the
a resistor is made out of a long wire having a length each end of the wire is attached to a terminal of a battery
two identical boxcars m 15730 kg are traveling along the same track but in opposite directions both boxcars have a
the light shining on a diffraction grating has a wavelength of 490 nm in vacuum the grating produces a second-order
three and only three bright fringes can be seen on either side of the central maximum when a grating is illuminated
three identical resistors with resistances of 60w are connected to a batter with an emf of 180v and zero internal
a patient is undergoing open-heart surgery a sustained current as small as 25mua can be fatal assume that the heart has
the amount of charge that passes through the filament of a certain lightbulb in 200 s is 167ca find the current in the
a spaceship moving away from earth at 067 c fires a particle beam toward earth with speed 074 c relative to the ship at
a piece of copper wire is formed into a single circular loop of radius 12 cm a magnetic field is oriented parallel to
a square coil of wire of side 300 cm is placed in a uniform magnetic field of magnitude 250 t directed into the page as
a vertical solid-steel post 260 cm in diameter and 253 m long is required to support a load of 8200 kg you may ignore
a bimetalic strip consists of a thinstip of brass alphabrass19x106co-1 riveted to a thin strip of steel
a small current loop of area a00008m2 and moment of inertia i69e-07kgm2 carries a current i00039a with its magnetic
five objects each of mass m are equally spaced on the arc of a semicircle of radius r as shown in the figure belowsee
two waves traveling on a string in the same direction both have a frequency of 141 hz a wavelength of 43 m and an
a football kicker can give the ball an initial speed of 24 ms he is 54 m from the goalpost which has a crossbar 346 m
a rock is shot vertically upward from the edge of the top of a tall building the rock reaches its maximum height above
a researcher would like to perform an experiment in a zero magnetic field which means that the field of the earth must
attached to each end of a thin steel rod of length 110 m and mass 600 kg is a small ball of mass 102 kg the rod is
two uniform solid spheres have the same mass of 215 kg but one has a radius of 0213 m while the other has a radius of
how much potential energy does deanna with a mass 645 kg gain when he climbs a gymnasium rope a distance of 31 mja 66