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Three charges, q1=2.0x10^-8 C, q2= -3.0x10^-8 C, and q3= -4.0x10^-8 C, are located on the y-axis with y1=0.6m, y2=0.2m, and y3=-0.8m. Find the resultant force exerted on the third charge q3 by the other two charges.
A research submarine has a 10-cm-diameter window that is 8.9cm thick, What is the submarine's maximum safe depth in salt water
After 803 rev/min is achieved, the motor is disengaged. A friction brake is used to slow the rotational rate to 351 rev/min. Illustrate what is the magnitude of the energy dissipated as heat from the friction brake?
One way to decrease your use of fossil fuels is to heat your water via solar radiation. A solar water heater runs cold water through dark, radiation absorbing tubing.
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 13.0 m/s at an angle 52.0 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the gr..
For no apparent reason, a poodle is running at a constant speed of 3.40 m/s in a circle with radius 2.8m. Let v1 be velocity vector at time t1, and let v2 be the velocity vector at time t2.
A person swimming underwater sees a lifeguard who is standing in the shallow part of the pool; the water comes up to the lifeguard's waist. In what way does the swimmer see lifeguard's upper body distorted.
A 20x telescope has a 12-cm diameter objective lens. What minimum diameter should the eyepiece lens have to collect all the light rays from an on axis distant source.
Two cylinders of the same material and length, are held horizontally one atop the other with space in between so they are not touching.. Viewed from the end they look like two circles on top of each other with space between(looks like a lower case..
New physics student having trouble with hw, not sure how to set this up or find the answer. Throw a ball straight up with an initial vel. of 18.5m/s. if ball is caught at the same height it was released, and then compute the max. Height achieved b..
When they release their arms, Al moves off in one direction at a speed of 0.689 m/s, while Jo moves off in the opposite direction at a speed of 1.10 m/s. Assuming that friction is negligible, find out Al's mas
How fast can this car round a second curve of radius 320m?
A certain organ pipe, open at both ends, produces a fundamental frequency of 256 in air.If the pipe is filled with helium at the same temperature, what fundamental frequency will it generate ? Take the molar mass of air to be 28.8 and the molar ma..
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