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Q. An electron starts from rest 4.00 cm from the center of a uniformly charged sphere of radius 2.00 cm. If the sphere carries a total charge of 1.00 multiplied by 10-9 C, how fast will the electron be moving when it reaches the surface of the sphere?
Q. A charge of -3.80 nC and a charge of -6.00 nC are separated by a distance of 60.0 cm. Find the position at which a third charge of +7.30 nC can be placed so that the net electrostatic force on it is zero.
In a die-casting operation 0.1 kg charges of molten zinc alloy at 410 degrees C are injected at a rate of 120 charges per hour. Calculate the average die temperature after a die-casting operation
Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which is true about their kinetic energies as they reach the gr..
Water flows through a Venturi meter with a pipe diameter of 10.0 cm and a constriction diameter of 5.6 cm. The U-tube manometer is partially filled with mercury.
What is magnitude of the runner total displacement
In a head-on collision, the car stops in 0.23 {rm s} from a speed of 17 {rm m}/{rm s}. The driver has a mass of 77 {rm kg}, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fract..
A 14 g bullet travelling at 247 m/s is fired into a 0.459 kg wooden block anchored to a 100 N/m spring. How far is a spring compressed to the nearest thousandth of meter.
A block of ice of mass 8 kg, released from rest at the top of a frictionless ramp of a 1.50m long slides downhill, reaching a speed of 2.50 m/s at the bottom.
The leg and cast weigh 177N (w1). Find out the weight w2 and the angle α required so that no force is exerted on the hip joint by the leg plus cast.
Find out the vertical component of the reaction force
Find out vertical and horizontal components of the pendulum
Find out the work completed by neoconservative forces in stopping plane. At the nozzle exit, diameter is 2.5 cm and the density is 1.29kg/m^3. What is the speed of the air as it leaves the nozzle.
Compute the numerical value for acceleration
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