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a 30 microcoulomb point charge is placed in an external uniform electricfield of 16104 nc at what distance from the
a microwave oven generates electromagnectic waves of frequency245 ghz the microwaves enter the oven and are reflected
a 310cm focal length converging lens is 240 cm behind adiverging lens parallel light strikes the diverging lens after
a m1 470 kgblock and a m2 1000 kg block are connected by a string as infigure p836 the pulley is frictionless and of
a single constant force f 3 i 4j n acts on a 385 kgparticlea calculate the work done by this force if the
an ambulance with a sirenemitting a whine at 1730 hz overtakes and passes a cyclist pedalinga bike at 23 ms after being
the a string of aviolin is a little too tightly stretched beats at 7 persecond are heard when the string is sounded
a 40 kg girl skating at 7 ms collides with her 90 kg father who is initially standing still he grabs his daughter as
a nordic jumper goes off a ski jump at an angle of 98deg below the horizontal traveling 108 mhorizontally and 643 m
a block is hung by a string from the inside roof of a van when thevan goes straight ahead at a speed of 20 ms the block
a worker on the roof of a house deops his 026 kg hammer which slides down the roof at constant speed of 746 ms the roof
a small compass is held horizontally the center of its needle adistance of 0120 m directly north of a long wire that
a 386-khz tone is being produced by a speaker with a diameterof 0239 m the air temperature changes from 0 to 284oc
a motorist drives south at 200 ms for 300 min then turns west and travels at 250 ms for 200 min and finally travels
an artillery shell is fired with an initial velocity of 300 ms at520deg abovethe horizontal to clear an avalanche it
a 780 ohm and a 480 ohm resistor are connected in parallel when this combination is connected across a battery the
a car battery has a rating of 230amperemiddothours amiddoth this rating is one indication of the total charge that the
a ball is thrown straight upward and returns to the throwers handafter 260 s in the air a second ball is thrown at an
there are 2 spaceships a and b that approach the earth from opposite directions now according to an observer on
you rub an inflated balloon on the carpet andit acquires a potential that is 1500 v lower than its potential before it
a ball is thrown straight upward and returns to the throwers hand after 260 s in the air a second ball is thrown at an
when a 370 nf air capacitor 1 nf 10-9 f is connected to a power supply the energystored in the capacitor is 185 10-5 j
a 1750-kg car is traveling with a speed of150 ms what is the magnitude of the horizontal net force that is required to
a capacitor with air between its plates is charged to 130 v and then disconnected from the battery whena piece of glass
a parallel-plate air capacitor has a capacitance of 830 pf the charge on each plate is 180 microca what is the