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a 20 resistor is connected across a 60 v power supply an ammeter with internal resistance of 10 is used to measure
a bullet mass 71 grams is fired from a gun with a muzzle velocity of 1078 mph it embeds itself 773 cm in a wood post
the crankshaft in a race car goes from rest to 3600rpm in 32s how many revolutions does it make while reaching
a 44-nf parallel plate capacitor with a sheet of mylar 31 filling the space between the plates is charged to a
if two tiny identical spheres attract each other with a force of 200 when they are 260 apart what is the mass of each
a commercial airliner is undergoing its initial ascent while the pilot maintains a cabin environment of t 23 c r 035
a spherical raindrop of mass 000942 g and radius 131 mm falls from a cloud that is at a height of 1115 m above the
the rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides therefore
a step-down transformer turns ratio 18 is used with an electric train to reduce the voltage from the wall receptacle
the battery charger for an mp3 player contains a step-down transformer with a turns ratio of 125 so that the voltage of
the maximum strength of the earths magnetic field is about 69 x 10-5 t near the south magnetic pole suppose we want to
a generator has a square coil consisting of 265 turns the coil rotates at 106 rads in a 0174-t magnetic field the peak
maddox takes off on his jet ski so they have a combined mass of 35048kg the skis have a thrust of 97326n and a
an iron bar of mass 082 kg slides down a frictionless incline 029 m high at the bottom of the incline it collides and
regulation tennis balls have a mass of 575 g when dropped from a height of 307 m they must rebound to a height of 213 m
a 1349 g ball of putty traveling east at 675 ms collided and sticks to another ball of putty of mass 2381 g traveling
a radioactive nucleus decays spontaneously by the emission of an electron and neutrino the electron carries away 0 kg
a baseball pitcher throws a 145 g baseball parallel to the ground with a speed of 3903 ms in the x direction the batter
starting from rest a 96-kg firefighter slides down a fire pole the average frictional force everted on him by the pole
in 1769 seconds you compress a spring of spring constant 15333 nm from its equilibrium length of 65 cm to a length of
a car plus its driver has a mass of 1400 kg when the driver takes his foot off the accelerator the car slows from 30 m
a body is traveling at 500 ms along the positive direction of an x-axis no net force acts on the body an internal
gas is confined in a tank at a pressure of 115 atm and a temperature of 232degc if two thirds of the gas is withdrawn
a wire with a resistance of 45 is drawn out through a die so that its new length is 4 times its original length find
on vacation your 1250 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 175 ms2a what is the