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Two identical insulating balls are suspended by a seperate 0.25m threads that are attached to a common point on a ceiling. Each ball has a mass of 8.0 x 10E-4 Kg. At first the balls are uncharged and hang straight down. They are given identical positivecharges and as a result spread apart with an angle of 36 degrees between the threads. Determine a) the charge on each ball and b) the tension in the threads.
You are playing raquetball at the rec center. When you are 10 m away from the wall you hit a ball 24 m/s towards the wall at an angle of 30 degrees. How high above the launch point does the ball hit the wall
A thick cylindrical shell of inner radius a= 5 cm and outer radius b= 10 cm and has a net charge ZERO. Consider 1m length of the cylinder and find the inner and the outer surface charge densities
A driver travels northbound on a highway at a speed of 22.0 m/s. What frequency does the driver detect after the police car passes him
A model rocket is fired upward. The rocket's average initial acceleration is 40.5 m/s2 until the fuel burns out in 0.805 s. How high does the rocket go
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Calculate the velocity of the target ball after the collision
A steel rod has a length of exactly 0.2cm at 30degree centigrade. what will be its length at 60degree centigarde?
Compute the y-component of acceleration
An AC source with Vrms = 15V is connected in series with resistor R = 15?, a capacitor C = 100?F, What is the average power dissipated from the source
A point source of sound that emits uniformly in all directions is located in the middle of a large, open field. What is the distance between Brittany and Phillip
Two long, coaxial cylindrical shell conductors carry equal and opposite charges. The inner shell has radius "a" and charge +q, and the outer shell had radius "b" and charge -q. Find the potential difference between the shells
A steel sphere 3.0 cm in diamter has a mass of 0.11 kg. What is the mass of a steel sphere 5.0 cm in diameter
When a 0.20-kg mass is suspended from a vertically hanging spring, it stretches the spring from its original length of 3.0 cm to a total length of 7.0 cm. What is the maximum speed of the mass as it oscillates
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