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Q1. Two point charges = 2.10 and = -6.40 are 0.100 apart. Point is midway between them; point is 0.080 from and 0.070 from. Take the electric potential to be zero at infinity.
Q2. A non-conducting spherical shell - inner radius a, outer radius b, has a volume charge density r=r0cos(er/b). The force on a point charge Q located at the center of the shell is 0 why?
Q3. A charge of +2.ooX10^-9 C is placed at an origin, and another charge of +4.ooX10^-9 C is placed at x= 1.5m. Find out the point between these two charges where a charge of +3.00X10^-9 must be placed so that the net electric force on it is zero.
A ball starts at a point 30 m above the bottom of a dip with of 25 m/s. overlook friction, what will be the speed of the ball at the top of the next slope, which is 45 m above the bottom of the dip.
A swimmer, capable of swimming at a speed of 1.99 m/s in still water, How far downstream will the swimmer be upon reaching the other side of the river
A hot ( ) lump of metal has a mass of 250g and a specific heat of 0.25 . John drops the metal into a 500g calorimeter containing 75g of water at . The calorimeter is constructed of a material that has a specific heat of 0.10 . When equilibrium is ..
A large incandescent light bulb used in a spotlight in the 1939 movie "The Wizard of Oz" had an operating temperature of 2500 degrees Kelvin. determine the thermal power from the filament in Joules/second
question1friend of yours travels by you in his fast sports car at a speed of 0.550 c. it is measured in your frame to
A 218.3 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. What is the velocity (speed) of the satellite
For comparison, what is the magnitude of the acceleration a test tube would experience if dropped from a height of 1.0 m and stopped in a 2.0-ms-long encounter with a hard floor
draw a motion diagram, using the particle model, showing the cars velocity vectors as seen from a helicopter hovering over the highway.
What is an angular speed about the center of mass
A horizontal force of 200N is applied to a 55kg cart by a child across a 10m level surface. The cart accelerates at 2m/s^2. What force of friction acts to retard the motion of the cart
A solenoid with a cross-sectional area of 1.70*10^-3 is 0.735m long and has 485 turns per meter. Find the magnitude of induced emf in this solenoid
The pulley system in Figure below is used to lift a 52-kg crate. Note that a chain connects the upper pulley to the ceiling, determine the tension in each chain
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