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An electron is released from rest at a distance of 0.500m from a large insulating sheet of charge that has uniform surface charge density 3.70×10-12C/m2 .
A) How much work is done on the electron by the electric field of the sheet as the electron moves from its initial position to a point 4.00×10-2m from the sheet?
B) What is the speed of the electron when it is 4.00×10-2m from the sheet?
A 3 kg mass attached to a k=27N/m spring slides on a frictionless horizontal surface as simple harmonic oscillator. At t=0, x=-0.2 and v=3m/s. Find the amplitude and max velocity
In an insulated vessel, 260 g of ice at0°C is added to 630 g of water at19.0°C. What is the final temperature of the system? How much ice remains when the system reaches equilibrium?
Radio waves are diffracted by large objects such as buildings, whereas light is not noticeably diffracted by large objects such as buildings. Why is this?
A rock weighing 400 N sits on the edge of a 60 m cliff. After falling 15 m how much kinetic energy does the rock have
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a what is de broglies hypothesis? derive the formula for de broglies wavelength for a particle of mass m from the basic
A rock is launched from a wall 15 m above a moat at a speed of 29m/s at an angle of 36 deg above horizontal. How far from the wall does the launched rock hit the ground?
A person walks 21° north of east for 3.30km. How far would another person walk due north and due east to arrive at the identical location.
A uniform solid disk has a radius of R = 0.52 m and mass of M = 5.5 kg and is free to rotate about an axis through its center of mass. How many revolutions has the disk made at t = 8.2 seconds
A system has a heat source supplying heat at a rate of 187 W, At what rate is the internal energy of the system changing
A tuning fork vibrates at a frequency of 520 Hz. An out-of-tune piano string vibrates at528 Hz. How much time separates successive beats
A 70-kg stunt pilot pulls out a drive while flying at 50 m/s. If he flies a circular path with a radius of 200 m, what force does his seat exert on him at the bottom of the path
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