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An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 1.7 x 10-7 C/m2, and the plates are separated by a distance of 2.2 x 10-2 m. How fast is the electron moving just before it reaches the positive plate?
Four stars with equal masses m=1.99×1030 kg are located at the corners of a square, What is the magnitude of the net force on the star at the origin
A lens for a 35-mm camera has a focal length given by f= 43mm. What is the magnification of the image on the film
question 1 a silver wire is 4.8 m long and 0.47 mm in diameter. what is its resistance?question 2 when a potential
A football player kicks a 0.41-kg football initially at rest;and the ball flies through the air. what is the football's change in momentum
An event occursin system K' at x' = 2m , y'=3.5mz'= 3.5 m and t'=0. What are the coordinates of the event in sytem
a block of mass m=2.00kg is attached to the end of an ideal spring and its initially hanging motionless. with what angular frequency will the block oscillate
Laser light is shown through a diffraction grating with a line density of 880 lines per mm. What is the wavelength of the laser
The electrons in a rigid box emit photons of wavelength 1484 nm during the transition. How long is the box in which the electron are confined
a briefly describe the davidson-germer experiment. how does it support the de broglies hypothesis?b what is bragg
A 90.0 ohms resistor, a 0.110 H inductor, and a 16.0 uF capacitor are connected in series to a 60.0 Hz source. Find the rms voltage across the resistor
You are 1.5 m tall and you are standing 2.0 m away from a flat mirror. The Top of the mirror is at the same level as the top of your head. How large is the mirror
A generator driven by a diesel engine that develops 12 hp delivers 28 A at 240 V. What is the efficiency of the generator
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