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The electric potential at a position located a distance of 19.5 mm from a positive point charge of 7.70×10-9C and 11.5 mm from a second point charge is 1.10 kV. Calculate the value of the second charge.
A person wearing a safety belt can withstand an acceleration of -3.0 x 10^2 m/s2. How thick must barriers be to safely stop a car that hits a barrier at 112 km/h.
A sinusoidal transverse wave travels along a long stretched string. The amplitude of this wave is 0.0859 m, its frequency is 2.41 Hz, What is the shortest transverse distance between a maximum and a minimum of the wave
A listener increases his distance from a sound source by a factor of 3.05, what is the change in the sound intensity level in dB
An airplane flies due north in a region where Earth's magnetic field has magnitude 5.3×10?5T, declination 0?, and inclination 75?. What's the induced emf between the wingtips, 36 m apart, when the plane flies at 230m/s
A soccer player 'heads' the size 5 ball deflecting it by 46.0°, and keeps its speed of 15.90 m/s constant. A size 5 ball has a mass of approximately 0.421 kg. What is the magnitude of the impulse which the player must impart to the ball.
An airplane is flying with a velocity of 91at an angle of 26 above the horizontal. When the plane is a distance 107 directly above a dog that is standing on level ground, a suitcase drops out of luggage compartment.
block 1 of mass m1 slides from rest along a frictionless ramp from height h = 3.2 m and then collides with stationary block 2, What is the value of distance d if the collision is elastic
In reality, the COP of the heat pump will only be 60 percent of the ideal value. What is the minimum power of the electric motor when the COP is 60 percent of the ideal value
Your telescope has a 700mm-focal-length objective and a 26-mm-focal-length eyepeice, You position film so that it caputures the image produced by the objective lens. What is the diameter of that image
After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 44.0. He finally comes to rest 22.0 below the level of the bridge. Illustrate what is the spring stiffness constant?
A small compass is held horizontally, the center of its needle a distance of 0.140 m directly north of a long wire that is perpendicular to the earth's surface, What direction does the current in the wire flow, toward or away from the earth's surfa..
A 40.0 ball of clay travelling east at 6.00 collides and sticks together with a 20.0 ball of clay travelling north at 5.00. What is the speed of the resulting ball of clay.
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