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Consider two widely separated conducting spheres, 1 and 2, the second having six times the diameter of the first. The smaller sphere initially has a positive charge q = 4.00×10-6C, and the larger one is initially uncharged. You now connect the spheres with a long thin wire. How are the final potentials V1 and V2 of the spheres related?
Find the final charge q1.
Find the final charge q2
What is the potential difference between two points that are 0.800 m and 3.75 m from a proton? What is the diameter of the 1.80 V eqipotential surface
What is the energy density. Find out the lowest frequency that permits standing waves in both strings with a node at the junction. The standing wave pattern in each string may have a different number of loops.
What is the average induced emf in the coil in mV. If he is crossing a river where the current is 1.60 km/h, in what direction should his boat be headed if he wants to reach the point directly opposite his starting point.
A woman throws a ball at a vertical wall d = 3.0 m away. The ball is h = 1.5 m above ground when it leaves the woman's hand with an initial velocity of 12 m/s at 45°.
A ferry boat transports tourists among three islands. It sails from the first island to the second island, 4.7 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 69.0° west of north..
An ancient club is found that contains 120.00 g of pure carbon and has an activity of 7 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.10x10-12. Note that half life of carbon-14 is 5700 yea..
A conveyor belt at a quarry lifts 2,000 kg of sand per minute up a vertical distance of 12 meters. The sand is at first at rest, then moves at a speed of 0.20 m/s along conveyor belt. What is the instantaneous power generated by this machine .
A 6.4kg ball, hanging from the ceiling by a light wire 135cm long, is struck in an elastic collision by a 1.80 ball moving horizontally at 4.20 m/s just before the collision. Find the tension in the wire just after the collision.
A neutral conductor completely encloses a hole inside of it. you observe that the outer surface of this conductor carries a charge of -12 microC. A) can you conclude that there is a charge inside the hole? b) how much charge is on the inner surfac..
An Indy car with a speed of 125km/h goes around a level, circular track with a radius of 1.3km. What is the centripetal acceleration of the car.
Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.25 km long. What is the resistance of such a wire at 20°C
A soprano saxophone is an open pipe. If all keys are closed, it is approximately 65 cm long. Using 343 m/s as the speed of sound, find the lowest frequency that can be played on the instrument.
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