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A point charge (m=1 g) at the end of an insulating string of length 55 cm is observed to be in equilibrium in a uniform horizontal electric field of 12000 N/C where the pendulum's position is as shown in the figure, with the charge 12 cm above the lowest(vertical ) position. If the field points to the right, determine the magnitude and sign of the point charge.
A long string is moved up and down with simple harmonic motion with a frequency of 46 Hz. The string is 579 m long and has a total mass of 46.3 kg. Determine the velocity of the wave on the string
In a certain cyclotron a proton moves in a circle of radius 0.750 m. The magnitude of the magnetic field is 1.60 T. (a) What is the oscillator frequency (in Hz)? (b) What is the kinetic energy (in eV) of the proton?
question a compound that has a molecular ion peak in its mass spectrum at mass 94 and shows prominent peaks in its ir
Two blocks of masses m1 = 2.00 kg and m2 = 4.25 kg are each released from rest at a height of y = 5.20 m on a frictionless track, obtain the velocity of each block just before the collision
Two plane mirrors facing each other are 10 m apart. A woman stands 3 m from one of the mirrors and looks at the mirror and sees two distinct images. How far are these images from the woman.
Two particles are fixed to an x axis: particle 1 ofcharge -7.52 x 10-7 C is at the origin and particle 2 ofcharge +7.52 x 10-7 C is at x = 16.6 cm. Midwaybetween the particles, what is the magnitude of the net electricfield?
consider the electrons of a speed .99999999967c of produced by the stanford linear accelerator, what is the magnitude of momentum of such an electron
A rigid tank contains 1.30 moles of an ideal gas. Determine the number of moles of gas that should be withdrawn from the tank to lower the pressure of the gas from 24.5 atm to 4.40 atm. Assume volume of the tank and the temperature of the gas rema..
A 7 kg ball has a velocity of 16 m/s. How much work would be required to stop the ball
A 106 m long train begins uniform acceleration from rest. The front of the train has a speed of 23 m/s when it passes a railway worker who is standing 230 m from where the front of train started. What will be the speed of last car as it passes the..
suppose you wish to fabricate a uniform wire out of 2.30 g of copper. if the wire is to have a resistance of r 0.500
a 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. as an approximation assume a
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