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Calculate the electric field at the center of a square 53.0 cm on a side, if one corner is occupied by a +48.0 µC charge and the other three are occupied by -22.0 µC charges. (Assume the center of the square is at the origin and the positive charge is in the third quadrant.)
Calculate the probability that an electron in the ground state of a hydrogen atom will be found at a greater distance from the nucleus than would be allowed classically.
A pendulum clock is accurate on earth, where the period of its pendulum is 1.00 s. During a 2 h interval, what would be the elapsed time shown on the clock
A two-slit pattern is viewed on a screen 1.10 m from the slits. If the two third-order minima are 21.0 cm apart, what is the width of the central bright fringe
A Ferris wheel with radius 9.7 m rotates at a constant rate, completing one revolution every 37.8 s. Find the magnitude and direction of the passenger's acceleration
a camera lens n 1.50 is coated with a thin film of potassium bromide n 1.56 of thickness 87.9 nm. what wavelength in
A body slides down a plane inclined at 40 degrees to the horizontal, with an acceleration of 2.3 meters/second^2. Determine the coefficient of kinetic friction
Find out the acceleration of the sled and child
A 1000Hz sound travels through pure oxygen. The wavelength of the sound is measured to be 0.65m. What is the speed of oxygen?
lasik eye surgery uses pulses of laser light to shave off tissue from the cornea reshaping it. a typical lasik laser
Calculate the net work done by the force of friction. A 1.50 m-long, 530 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.90 {rm m}/{rm s}^{2}. How much force pulls forward on (a) ice (b) rop..
In a U-tube there is some water and on top of the water in one of the tubes there is oil (water and oil don't mix). Find the density of the oil
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.17 × 102 kW. Find the intensity of the sound
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