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Two very small spheres are initially neutral and separated bya distance of 0.70 m. Suppose that3.50 1013 electrons are removed from one sphereand placed on the other.
(a) What is the magnitude of the electrostaticforce that acts on each sphere?
(b) Is the force attractive or repulsive? Why?
In 0.675 s, a 6.80-kg block is pulled through a distance of 4.10 m on a frictionless horizontal surface, starting from rest. By how much does the spring stretch
A Marconi antenna, used by most AM radio stations, consists of the top half of a Hertz antenna, What is the height of the Marconi antennas for radio stations broadcasting at 519 kHz
Where Is The Net Force Zero? Three point charges lie along the x-axis. The positive charge q1 = 15.0 ?C is at the x = 2.00 m, What is the x coordinates of q3
An object of heat capacity 100 cal/°C is initially at 30°C. Estimate the resulting entropy change of the universe
The original Ferris wheel, built by George Ferris, had a radius of 38 m and a mass of 1.9 X 106 kg. What force exerted on the rim of the wheel would have given such a torque
Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. The yellow disk is initially at rest and is struck by the orange disk moving with a speed of 5.00 m/s.
A 5 kg ball is thrown upward with an initial speed of 30 meters per second. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path
A ray of light strikes a block of some transparent material at an angle of incidence of 60degrees. Find the speed of light in the block
philippine aviation design calls for a lift due to the net force of moving air on the wing of about 2000n per m2 of
7.22 x1013 electrons flow through a transistor in 3.55 ms. What is the current (in mA) through the transistor
A truck with 0.420 m radius tires travels at 34 m/s. What is the angular velocity of the rotating tires in radians per second
In a CRT tube, electrons are accelerated by a 20,000 V potential difference between the electron gun (the cathode) and the positive metal mesh 5.00 cm away. How much time does it take the electron to reach the wire mesh
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