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A dipole has two charges of .25C and -.25C. What is the flux during a Gaussian surface that includes?
a) Only the positive charge?
b) Only the negative charge?
c) Both charges?
d) No charges?
A convex mirror has a radius of curvature of 42 centimeter. Estimate how far is the object from the mirror
A space station is moving in a circular orbit around the Earth. It makes one revolution in 90 minutes. How high above the Earth's surface is the space station
An airplane traveling 1001 m above the ocean at 125 km/h is to drop a box of supplies to shipwrecked victims below. How many seconds before being directly overhead must the box is dropped?
An 9.0 m, 240 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.60, and the ladder makes a 50.0° angle with the ground. How far up the ladder can an 880 N person climb before the l..
A point charge of +7.6? C is located 0.27 m from a second point charge of -4.9? C. What is the absolute magnitude of the force on each charge
A broad beam of light of wavelength 485nm is incident at 90° on a thin, wedge-shaped film with index of refraction 1.50. An observer intercepting the light transmitted by the film sees 17 bright and 16 dark fringes along the length of the film. By..
According to the shop manual, when drilling a 12.8-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. For a 12.8-mm-diameter drill bit turning at a constant 1400 rev/min , find the maximum linear speed of a..
After the first spring compresses a distance of 33cm, second spring acts with the first to increase the force as additional compression occurs. The car comes to rest 53.0 cm after first contacting the two-spring system. Find the car's initial spee..
If the plane does 2.00 x 105 J of work to tow the glider 155 m and the tension in the tow rope is 2460 N , what is the angle between the tow rope and the horizontal
A boy of mass 52.2 kg is initially on askateboard of mass 2.00 kg, moving at a speed of 9.8 m/s. The boy falls off the skateboard, and hiscenter of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard.
A string with a mass m = 6.00 g and a length L = 5.00 m has one end attached to a wall; the other end is draped over a small, what is the fundamental frequency of its vibration
A 37.0-kg child swings in a swing supported by two chains, each 3.06 m long. The tension in each chain at the lowest point is 436 N. Find the child's speed at the lowest point
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