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Charges of 6.0 uC are placed at corners of a square that has sides of 2.0cm. Find the magnitude and direction of the force on the charges.
During the propulsive phase of a dive (pushing off the diving board), the net vertical and horizontal forces were 100 N and -100 N, what was the net angular impulse applied to the body
A ball is kicked with initial velocity of 14.9 m/s in the horizontal direction and 15.7 in the vertical direction. At what speed does the ball hit the ground
The power P of an Electric circuit varies jointly with resistance , R and with the square of the current, I. find the power if the current is 2.00 A and the resistance is 2.00 ohms
A charged oil droplet falls 5.0 mm in 20.0 s at terminal speed in the absence of an electric field. What are the mass and radius of the drop
A 43.0-kg child swings in a swing supported by two chains, each 2.92 m long. The tension in each chain at the lowest point is 346 N. Find the child's speed at the lowest point
The third-order fringe of 650 nm light is observed at an angle of 30°, How far apart are the slits
In order better to map the surface features of the Moon, a 305-kg imaging satellite is put into circular orbit around the Moon at an altitude of 1.21 × 102 km. What is the Gravitational Potiential Energy
A Ferris wheel is a vertical, circular amusement ride with radius 6 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at the constant rate, going around once in 6.4 s. Consider a rider whose mass is 70 kg.
An astronaut is rotated in a horizontal centrifuge at a radius of 7.5 m. (a) What is the astronaut's speed if the centripetal acceleration has a magnitude of 5.4g? (b) How many revolutions per minute are required to produce this acceleration.
The potential energy of a particle moving in the x-y plane is U=a/(x^2+y^2)^1/2, where a is a constant. What is the force on the particle
Find out the longest wavelength electrons that can produce a first-order maximum.
A 52-kg pole vaulter running at 13 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s, determine her altitude as she crosses the bar
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