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Imagine that you fire a proton at the nucleus of a gold atom (which contains 79 protons and 118 neutrons). What does the proton's initial speed have to be if it is to penetrate the gold nucleus (whose raduis is about 6 fm)? Express your answer as a fraction of the speed of light (One way to measure nuclear radii is to find the speed that such a proton ust have to be absorbed).
questiona sledge loaded with bricks has a total mass of 17.3 kg and is pulled at constant speed by a rope inclined at
an especially violent lightning bolt has an average current of 2.86 x 103 a lasting 0.220 s. how much charge is
A goalkeeper kicks a ball of mass 400 g in the air, which reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. What is the total work done on the ball
A parallel-plate capacitor has a capacitance of 10 mF and charged with a 20 V power supply. The power supply is then removed and a dielectric of dielectric constant 4 is used to fill the space between the plates. The energy now stored by the capac..
jane looking for tarzan is running at top speed 6.6 ms and grabs a vine hanging vertically from a tall tree in the
A skiy diver, with parachute unopened, falls 625 m in 15.0s. What is her average velocity (both magnitude anddirection) for the entire fall
A light meter stick is balanced at the 60 cm mark with a 200-g mass is hung from the 90 cm mark and a 100-g mass is hung from the 10 cm mark, Find the mass (in g) of the ruler
A satellite circles the earth in an orbit whose radius is 3.26 times the earth's radius. What is the period of the satellite
A 16.0-? resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 170-V generator. At what frequency is the current a maximum
The plate seperation of a parallel plate capacitor is 1mm. The area of the plates is 10cm2. Determine the energy stored in the capacitor with the dielectric
A beetle 4.50 mm long is examined with a simple magnifier of focal length = 11.7 cm. what is the apparent length of the beetle
A heart defibrillator passes 11.0 A through a patient's torso for 5.00 ms in an attempt to restore normal beating, What was the path's resistance?
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