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An 80 kg stuntman jumps from a window of a building situated 30 m above a catching net. Assuming that air resistance exerts a 100 N force on the stuntman as he falls, determine his velocity just before he hits the net.
Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, what is the magnitude of the applied force
a voltmeter is used to read the potential difference accross the poles of a battery.the battery is rated at 20 v. the
A 3.00-g bullet, traveling horizontally with a velocity of magnitude 370 m/s, is fired into a wooden block with mass 0.800 kg, What is the decrease in kinetic energy of the bullet
A truck driver has a shipment of apples to deliver to a destination 550 away. The trip usually takes him 10.0 . Today he finds himself daydreaming and realizes 100 into his trip that that he is running 30.0 later than his usual pace at this point. At..
A lamp (R = 147 ), anelectric heater (R = 26),and a fan (R = 48 ) areconnected in parallel across a 115 Vline. what total current is supplied to the circuit? what is the voltage across the fan?
A subatomic particle called a muon has a mass 207 times that of an electron and a charge equal to an electron charge. how long will the muon survive before decaying
question on a certain game show contestants spin a wheel when it is their turn. one contestant gives the wheel an
A car drives on a level circular track. The coefficient of friction between the tires and the track is 0.640. What is the radius of the track
A bowling ball weighing 71.2 is attached to the ceiling by a 3.80 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured..
You tie a cord to a pail of water, What minimum speed must you give the pail at the highest point of the circle if no water is to spill from it
A proton moves 2.5 cm parallel to auniform electric field of E = 170N/C. How much work is done by the field on the proton?
A 1170 kg block of granite is pulled up an incline with l = 40.0 m at a constant speed of 1.76 m/s by a steam winch. What is the power of the winch
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