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1) Two parallel infinite lines with equal and opposite but uniform charge distributions of 100 nC/m are separated by a distance of 1 mm. Determine the force per unit length.
2) An infinite, uniformly charged line with a charge density of 100 nC/m extends along the z axis.Find the force experienced by a charge of 500 nC located at (3,4,0)
3) An electron is circling around the nucleus of a hydrogen atom at a radius of 0.05 nm. Determine the angular velocity an the time period of the electron
Two point charges Q1 = +4.50 nC and Q2 = ?2.20 nC are separated by 45.0 cm. What is the potential energy of the pair of charges
A spaceship travels at constant velocity from Earth to a point 745 ly away as measured in Earth's rest frame. The ship's speed relative to Earth is 0.9996c. How old is the passenger when the ship reaches its destination
A baseball is thrown with an initial horizontal speed of 20 m/s, and an initial vertical speed of 10 m/s. Find the horizontal distance where the baseball will hit the ground, and the total time of fight. Assume g = 10 m/s2
The child then walks towards the center of the merry-go-round and stops at a distance 0.555 m from the center. Now what is the angular velocity of the merry-go-round
a proton accelerates from rest in a uniform electric field of 626 nc. at some later time its speed is 1.32 x 106 ms.a
An x-ray photon of wavelength 0.179 nm collides with an electron initially at rest. Calculate the Compton shift in wavelength
A dentist's drill starts from rest. After 3.53 s of constant angular acceleration it turns at a rate of 2.66E+4 revolutions per minute. Determine the angle through which the drill rotates
A father racing his son has 1/4 the kinetic energy of the son, who has 1/3 the mass of the father.What are the original speeds of the father and son
The speed of a transverse wave on a string is 450 m/s and the wavelength is 0.18 m. The amplitude of the wave is 2mm. How much time is necessary for a particle of the string to move through a total distance of 1 km.
Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 448 m/s.
Suppose we measure the terminal voltage of a rechargeable NiCad battery and find it to be 1.28 V when measured by a voltmeter. calculate the internal resistance of the battery
an insulated thermos contains 151 cm3 of hot coffee at 75 degc. you put a 12.0 g ice cube at its melting point to cool
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