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an ac series circuit has an impedance of 101 omega and the phase angle between the current and the voltage of the
there is a uniform electric field for regions near the surface of the earth equal to -150 nc k it is directed toward
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a 216-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp the ramp is inclined at
a 12-kilogram mass is projected from groundlevel with a velocity of 30 ms at some unknown angle above thehorizontal a
a 689 kg box sled is coasting across frictionless ice at a speed of 287 ms when a 223 kg package is dropped into it
regarding the earth and a cloud layer 800m above the earth as theldquoplatesrdquo of a capacitor calculate the
transporting alpha particleshelium nuclei design a part ofa transport system which will deflect the beam of
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a roller-coaster car may be represented by a block of mass 500 kg the car is released fromrest at a height h 450 m
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a 343 kg child swings on a rope with a length of 628 metershanging from a tree at the bottom of the swing the child
if a washing machine drum has a radius of 27 cm and spins at a rate of 39 revs per second what is the strength of the
truefalse1 the capacitance of a plate capacitor is proportional to the dielectric constant2 an electric field can
a current of 0240 a throughyour chest can send your heart into fibrillation ruining thenormal rhythm of heartbeat and
a 285-kg stunt boat is driven on the surface of a lake at aconstant speed of 135 ms toward a ramp which is angled
a ski jumper starts from rest 440 m above the ground on a frictionless track and flies off the track at anangle of
a closed system is observed to have 68objects in it initially the total energy of the system is7944 j after 11h have
while the repair shop works on your voltmeter they loan you anunusual replacement rather than measuring the potential
many lamps have a switch that lets you choose three levels of brightness the bulbs in this type of lamp have not one
a mass spectrometersketched below is a device used to separate different ions suchions with a well-defined velocity vo
a long wire lying along the x-axiscarries a current of 400 a in the x direction there is a uniformmagnetic field
a proton that is accelerated fromrest through a potential of 190 kv enters the velocity filterconsisting of a