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(1)A +13.86 nC charge is located at (0,10.55) cm and a -3.8 nC charge is located (4.43, 0) cm.Where would a -13.6 nC charge need to be located in order that the electric field at the origin be zero?
(2)Moving a charge from point A, where the potential is 398.3489 V, to point B, where the potential is 174.4013 V, takes 0.0005 J of work. What is the value of the charge?
(3)Two drops of mercury each has a charge on 0.0000000023 nC and a voltage of 243.81 V. If the two drops are merged into one drop, what is the voltage on this drop?
An investigator collects a sample of a radioactive isotope with an activity of 4.3x105Bq . 48hourslater, the activity is 1.0x1105Bq . What is the half-life of the sample?
A 95 long train begins uniform acceleration from rest. The front of the train has a speed of 25 while it passes a railway worker who is standing 170 from where the front of train started. What will be the speed of the last car as it passes the wor..
To initiate a nuclear reaction, an experimental nuclear physicist wants to shoot a proton into a 5.50-fm-diameter 12C nucleus. With what speed must the proton be fired toward the target
A square coil of wire with 15 turns and an area of 0.40 m2 is placed parallel to a magnetic field of 0.75 T. What is the magnitude of the average induced emf
0.015mol of a diatomic gas, with initial temperature 18 degrees C , How much heat is added during this process
In an RLC series circuit the phase angle between the currentand voltages is 30 degrees. If the AC frequency doubles, what is the resulting phase angle
An enemy ship is on the east side of a mountainous island. The enemy ship can maneuver to within 2500 meters of the 1800 meter high mountain peak and can shoot projectiles with an initial speed of 250m/sec. If western shoreline is horizontally 30..
A car traveling at a speed of 55 has its brakes applied at A, reducing speed at a rate of (-t/4) mph/s where t is in seconds. Find cars speed and acceleration
What is the minimum diameter mirror on a telescope that would allow you to see details as small as 5.25 km on the moon some 384000 km away
A ray of light is refracted from a fluid into glass(n=1.6). The incident angle is 40 degrees and the refracted angle is 30 degrees. What is the index of refraction of the fluid
A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, What is the total horizontal force on the driver if the speed on the same curve is 23.7 m/s instead
Determine the maximum deceleration it will experience and at what altitude? The capsule's BC is 1000 kg/m2 - what is the average drag acceleration ( in g's) we must attain?
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