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Points A, B, and C are at the vertices of an equilateral triangle.A certain positive charge q placed at A produces anelectric field of magnitude 235 N/C at C. Suppose a second, identical charge is placed at B. What is themagnitude of the new electric field at C?
Light of wavelength 470 nm in air enters a fishbowl filled with water, then exits by the crown-glass wall of the container. Find the wavelengths of the light (a) in the water and (b) in the glass.
Teo point charges are on the x-axis. The first is located at -4 meters and has a charge of -6 coulombs. Where on the x-axis is the electric field zero
A 60·kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 340·N. What is the final speed of the crate
The maximum speed of a 2.6-kg mass attached to a spring is 0.74 m/s, and the maximum force exerted on the mass is 11 N. What is the force constant of the spring
A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.
A particle with a mass of 3.5 × 10-20 kg is oscillating with simple harmonic motion with a period of 1.9 × 10-5 s and a maximum speed of 3.9 × 103 m/s. estimate the maximum displacement of the particle
at the top of a giant swing on the high bar,a 50kg gymnast's velocity is 1 m/s,and he is 3.5 m high. What is the gymnast's total mechanical energy at this instant
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to four times the earth's radius of 6.38 multiply.gif 106 m.
A robber's getaway vehicle, which can travel at 0.8c, is pursued by a cop. whose vehicle can travel at 0.4c. Realizing that he cannot catch up with the robber, the cop tries to shoot him with bullets that travel at 0.5c (relative to the cop). Can the..
When Josh begins his discus throwing motion, he spins with an angular velocity of 5 rad/s. Just before he releases the discus, what is Josh's average angular acceleration
The train on the right accelerates leftward at 0.82 m/s2.How far does train on the left travel before the front ends of the trains pass.
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