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a 120 volt battery is connected into a series circuit containing a 100 ohm resistor and a 200-h inductor find how long
a rifle is aimed horizontally at a target 50 meter away the bullet hits the target 22 centimeter below the aim pointa
a projectile mass 028 kilogram is fired at and embeds itself in a target mass 202 kilogram the target with the
a 1200 kilogram car is traveling initially with a speed of 250 ms in an easterly direction crashes into the rear end of
a current of 130 ma is maintained in a single circular loop with a circumference of 250 meter a magnetic field of 0630
three equal train cars coupled together are rolling east at 20 ms a fourth car traveling east at 40 ms catches up with
a thin 80 kilogram wheel of radius 34 centimeter is weighted to one side by a 20 kilogram weight small in size and
a stuntman with mass 750 kilogram falls from a height of 26 m onto several mattresses and compresses it 0875 meter
fairgoers ride a farris wheel with a radius of 500 meter the wheel completes one revolution every 320 second obtain the
a football punter accelerates a football from rest to a speed of 7 ms during the time in which his toe is in contact
gayle runs at a speed of 390 ms and dives on a sled initially at rest on the top of a frictionless snow covered hill
an observer at rest with respect to the sun measures the diameter of the earth in the direction of its motion as it
a 2700 kilogram truck traveling north at 41 kmh turns east and accelerates to 55 kmha estimate the change in the trucks
a stone initially at rest is dropped from the roof of a building after 200 second it is dropped a second stone is
a high diver leaves the end of a 50 meter high diving board and strikes the water 13 second later she strikes the water
to operate a given flash lamp requires a charge of 26 microc find what capacitance is needed to store this much charge
a 043 microf capacitor is connected to a 90 volt battery find the magnitude of the charge on each plate of the
coasting along at 900 ms a 600 kilogram bicyclist on an 850 kilogram bicycle encounters a hill if the speed of the
suppose that the earth is a uniform sphere and that its path around the sun is circulara find the kinetic energy that
explain what would happen to the length of a meter stick traveling near the speed of light with its long dimension
a wooden plank is raised at one end to an angle of 30 degree a 20 kilogram box is located on the incline10 meter from
calculate the speed of light observed coming from a star if the star is moving toward us at half the speed of
a copper wire has a square cross section a on a side the wire is l long and carries a current of i the density of free
a speeder is pulling directly away and increasing his distance from a police car that is moving at 29 ms with respect
three separated weights 400 n 294 n and 98 n on a frictionless horizontal table are all connected by a wire that passes