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An electron between two charged horizontal parallel platesexperiences a force of (8.68 *10^-15N, -y). (a) What isE between the plates? (b) If the plates are 8.75 cm long and are2.25 cm apart, what is the potential difference across the plates?(c) What is the acceleration of the electron when between theplates? (d) If the electron entered the region between the plates with a speed of 2.50 * 10^6 m/s, what will be itsspeed when leaving the plates?
A thin film of MgF_2 (n= 1.38) coats a piece of glass. Constructive interference is observed for the reflection of light with wavelengths of 500 nm and 625 nm
A 300-g mass at the end of a Hookean spring vibrates up and down in such a way that it is 2.0 cm above the tabletop at its lowest point, determine the amplitude of vibration
An Atwood's machine consists of blocks of masses M1=10 kg and M2=20 kg attached by a cord running over a pulley. The pulleys is a solid cylinder with mass M=8 kg and radius r=.2 m. The block of mass M2 is allowed to drop, and the cord turns the pu..
The C note of the C-major scale on a piano has a fundamental frequency of 264Hz, and the A note has a fundamental frequency of 440Hz. determine the ration of tension in the two string
estimate the speed of the car just before braking. how much time passes before the brick lands on the ground..
assume a brown dwarf has a surface temperature of 1000 K and approximately the same radius as jupiter. what is its luminosity compared to that of the sun
A charge of 6.53mC is placed at each corner of a square .470 m on a side. Determine the direction of the force on each charge
Suppose the force acting on a tennis ball (mass 0.040 kg) points in the +x direction and is given by the graph of Fig. 7-30 as a function of time. a) Use a graphical method to estimate the total impulse given the ball.
In diving to a depth of 983 m, an elephant seal also moves 693 m due east of his starting point. What is the magnitude of the seal's displacement
A copper wire has radius r = 0.424 cm, is 6.00 m long, has resistivity ? = 1.72·10-8 ? m, What is the electric field, E, in the wire
Jim paddles a canoe across a river that is 20 meters wide in 2.0 minutes. Uopon reaching the other side, he realizes that the river carried him 12 meters east of his starting point. If the water flowed towards the east with consant velocity and his c..
the wire unwinds without stretching or slipping, causing the pulley to rotate. Explain how far must the stone fall so that the pulley has 2.70 J of kinetic energy?
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