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Each ball has a mass of 25.0 grams and a charge of 1.40*10-6 C. The balls are released from rest when they are separated by a distance of 9.00 cm. What is the speed of each ball when the distance among them has tripled?
An empty coffee mug isaccidentally pushed horizontally off the shelf of your kitchencupboard. The mug was 1.36 m off the ground when it was pushed. find the horizontal and vertical components of the mug's velocity
How much power must you exert to horizontally drag a 20.0 kg table 14.0 m across a brick floor in 40.0 s at constant velocity, assuming the coefficient of kinetic friction between table and floor is 0.550.
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the total time the blue car is moving
You are on the tilt-a-whirl ride and it begins to spin. Model the ride as all the mass at a radius of 1.60 m. The mass of the ride with people is 230.0 kg. What is the moment of inertia of the ride
Real transformers are not 100 percent efficient. That is, the efficiency, in percent, is represented by e = (100) Ps / PP. A step- down transformer that has an efficiency of 92.5 percent is utilized to obtain 28.0 V from the 125-V household voltage. ..
A solenoid is formed by winding 97 turns of wire around a rectangle 7.3 cm by 14.6 cm. If the solenoid is 17 cm long, what is its inductance
A system does 4.30 104 J of work, and 7.00 104 J of heat flows into the system during the process. Find the change in the internal energy of the system
In the ideal Atwood aparatus in which, m1 = 2.0 kg sits on a 20 degree incline plane . What is m2 if both masses are at rest? How about if both are moving at contant velocity?
a potters wheel moves uniformly from rest to an angular speed of 0.18 revs in 34 s.a find its angular acceleration in
A small fly of mass 0.27g is caught in a spider's web. The web vibrates predominately with a frequency of 3.2Hz. At what frequency would you expect the web to vibrate
A Van de Graaff generator has a spherical dome of radius 25 cm. Operating in dry air, where "atmospheric breakdown" is at Emax = 3.0 · 106 N/C, obtain the maximum charge that can be held on the dome
Light striking a metal plate can eject electrons from the plate's surface (this is called the photoelectric effect). Imagine that we place the plate in a vacuum and set up an electric field in the plate's vicinity that is uniform in magnitude and dir..
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