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capacitors c1 50 microf and c2 20microf are charged as a parallel combination across a250 v battery the capacitors
an isolated capacitor of unknown capacitance has been chargedto a potential difference of 100 v when the charged
a person lying on an air mattress in the ocean rises and falls through one complete cycle every 5 seconds the creast of
a mass m is connected to the bottom of a vertical springwhose force constant is k attached to the bottom of themass is
a bungee jumper falls for 13 s before the bungee cord beginsto stretch until the jumper has bounced back up to this
a 755 n diver drops fromw a board 100 m aabove watersserface find the divers speed 500m above the waters serfface then
two capacitorsc1 30 microf andc2 30 microfare connected in parallel and charged with a 100 v power supplya calculate
a series combination of a 11 k resistor and an unknown capacitor is connected toa 11 v battery one secondafter the
a 108 g piece ofstyrofoam carries a net charge of -0700 microc and floats abovethe center of a large horizontal sheet
find the pressure increase in the fliuid in a syringe when anurse applies a force of 42n to the syringes circular
an electric dipole consists of charges 2e and-2e separated by 060 nm it is in an electric fieldof strength 45 x 106 nc
beams of high-speed protons can be produced in guns usingelectric fields to accelerate theprotons a what acceleration
a rock is dropped off the side of a bridge and hits the waterbelow 2s latera what was the rocks velocity when it hit
estimate the volume of water in the worlds oceans in cu km assuming a mean depth of water of 4 km how deep would the
a 12v battery is conected to an electricstarter motor the current through the motor is 223ahow much energy does the
an alpha particle helium nucleus charge 2e starts fromrest and travels a distance of 30 cmunder the influence of a
the coefficient of static friction between the tires of amotorcycle and the road is 056 at a speed of 19 ms what is
the click beetle accelerates at 400 g over a distance of 060 cm as it bends its thorax to clicka assuming the beetle
a spacecraft that is initially at rest turns its engine at t0 ifits mass is m3000kg and the force from the engine is
a 150g copper bowl contains 220 g of water both at 200degrees c a very hot 300g copper cylinder is dropped intothe
a turntable is switched from 471 rads 45rpm to 349 rads3313 and the platter rotates through an angle of 115 rad
an amusement ride consists of a car moving in a vertical circleon the end of a rigid boom the radius of the circle is
two point charges 370 microcand -610 microc are separated by 160 m what is the electric potential midway between
an object initially at rest experiences an acceleration of17ms2 for 70s and then travels at that constantvelocity for
two 75 kg campers are in the middle of a creek in a 45 kg boat without a paddle all they have on board the boat is a