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Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.107 N when their center-to-center separation is 46.6 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0321 N. Of the initial charges on the spheres, with a positive net charge, what were (a) the negative charge on one of them and (b) the positive charge on the other? (Suppose the negative charge has smaller magnitude.)
While landing, the rotor of a helicopter slows from an angular speed of 4500 rpm to rest in 5 seconds. How many revolutions does the rotor travel during this time
A vertical spring with a force constant of 300 N/m is compressed 6.0 centimeter and a 0.25 kilogram ball located on top. Evaluate how high does the ball go
A vehicle with a mass of 2200kg moving with an initial speed of 24.6 m/s hits a utility pole and comes to a stop. What acceleration does the car encounter
A long solenoid with 10.0 turns/cm and a radius of 7.00 cm carries a current of 20.0 mA. What is the magnitude of the magnetic field there
A billiard ball moving at 5.90 m/sstrikes a stationary ball of the same mass. After the collision,the first ball moves at 5.06 m/s, atan angle of 31.0° with respect tothe original line of motion.
A roller coaster goes through a complete loop. If the train is given an initial speed of v0 = 30 m/s, what is the largest value that the radius R can have
assess the benefits brought about by the application of lean techniques at wiremold. explain your answer by describing
A ball is thrown directly downward with initial speed of 8 m/s from A height of 30 meter. Find at what time interval does the ball strike the ground
Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m above a river. What is her height above the river at her lowest point
A block of mass M is attached to a spring ofspring constant k and is moving with constant speed in a horizontalcircle on a frictionless table. You measure that the time it takesthe mass to make one complete circle is T seconds.
An LCR circuit contains a resistor with R = 450 ? and a capacitor with C = 3,500 ?F. If the resonant frequency is 30 kHz, what is the value of the inductance
Four rays of light are incident on a surface of water. Their angles of incidence are 20, 30, 45, y 60 degrees. Calculate the angle of refraction for each ray
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