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The potential difference between the plates of a capacitor is 137 V. Midway between the plates, a proton and an electron are released. The electron is released from rest. The proton is projected perpendicularly toward the negative plate with an initial speed. The proton strikes the negative plate at the same instant the electron strikes the positive plate. Ignore the attraction between the two particles, and find the initial speed of the proton.
A ball of mass m makes a head-on elastic collision with a second ball (at rest), What is the mass of the second ball
From the equation for the line of best fit given, what is the magnitude of the crankshaft's angular acceleration? Express your answer using two significant figures.
If a lens with focal length 10 cm is placed 30 cm from an image 3 cm tall, how tall is the resulting image
A sewing machine needle moves with a rapid vibratory motion, rather like SHM, as it sews a seam. What is the maximum needle speed
A force of 21.0 N is required to start a 2.8 kg box moving across a horizontal concrete floor. What is the coefficient of static friction between the box and the floor
A long solenoid has n turns per unit length and a radius R. If the current in the solenoid varies as I(t) = I(0)sin(wt), what is the induced electric field as a function of r both inside and outside the solenoid
Two of the charges are negative and one is positive. Illustrate what work does the electric field have to do as these charges are assembled from infinity, without acceleration?
Is it safe to use zero for the initial velocity in equations?
A 1.6kg , 20-cm-diameter turntable rotates at 50rpm on frictionless bearings. What is the turntable's angular velocity, in rpm, just after this event
Determine the maximum magnetic flux through an inductor connected to a standard outlet (?Vrms = 120 V, f = 60.0 Hz)
An engine with an output of 170 W has an e?ciency of 45 %. It operates at 12 cycles/s. How much heat is absorbed in each cycle
A 0.180-kg yo-yo consists of two solid disks of radius 12.00cm joined together by a massless rod of radius 1.00 cm, Find the acceleration of the yo-yo
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