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In the figure below an electron is shot directly toward the center of a large metal plate that has surface charge density -1.00 × 10-6 C/m2. If the initial kinetic energy of the electron is 1.60 × 10-17 J and if the electron is to stop (due to electrostatic repulsion from the plate) just as it reaches the plate, how far from the plate must the launch point be?
In a series R-L-C circuit, L = 0.205H , C = 80.5?F and the voltage amplitude of the source is 260V, What is the resonance angular frequency of the circuit
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 5.90 m/s2, What angle does the ramp make with respect to the horizontal
A physics lecture room has a volume of 251m^3. Calculate the mass of the air in the room
Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans, What is the power delivered to your eardrum
An airplane is flying horizontally in a region where the earth's magnetic field is 5.2x10-5 T at an angle 60 deg below the horizontal. what is the potential difference between the wing tips
a 20 kg cart that is to be rolled up a 5 meter long 2 meter high ramp. what would be its velocity when it reached the bottom
A 4.5-kg, three legged stool supports a 68-kg person. If each leg of the stool has a cross-sectional diameter of 3.0 cm, determine the pressure exerted on the floor by each leg
A cargo plane in flight lost a package because somebody forgot to close the rear cargo doors. You are on the team of safety experts trying to analyze what happened, Calculate the time at which the package fell off the back ramp
A ball of mas 0.250. Kg is attached to a string 0.750 m long. The ball is swung in a s pendulum-type motion such that it has a speed of 6.40 m/s, What is the corresponding tension in the string
q1. a ball is thrown directly up from the ground with speed vsub0. at the same time a second ball is dropped from rest
The unpolarized light of intensity I(not) is passed through two polarizers with axes oriented at 30degrees from each other. What intensity of light emerges
An alpha particle (doubly ionized He atom ) is created in a vacuum in the center between our pair of Helmholtz coils horizontal (in the xy plane), how fast would the particle be traveling
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