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A ray of light strikes a block of polyethylene (n=1.50) with angles of incidence of (a) 0 degrees (b) 30degrees (c) 60 degrees. Determine the angle of refraction in each case.
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 0.72 eV. What is the width of the square well
During an all-night cram session, a student heats up a (0.7 x 10-3 m3) glass (Pyrex) beaker of cold coffee.Initially, the temperature is 18°C, How much coffee(in cubic meters) has spilled out of the beaker
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 6.00 m/s up the incline. Determine the initial speed of the second sled
An aluminum wing on a passenger jet is 26 meter long when its temperature is 15oC. Find at what temperature would the wing be 6 centimeter (.06 m) shorter
four particles are positioned at the corners of a square that is 4.0 m on each side. one corner of the square is at the
A thin layer of oil (n=1.50) floats on water. Destructive interference is observed for reflected light of wavelengths 480 nm and 600 nm, Find the two minimum thickness of the oil film
A toroid having a square cross section, 6.00 cm on a side, and an inner radius of 18.0 cm has 350 turns and carries a current of 0.650 A. What is the magnitude of the magnetic field inside the toroid
A conductor is slowly bought near the cap of a positively charged electroscope. The leaf first collapses and then diverges. State the charge on the conductor.
A baseball of mass 0.15 kilogram, moving horizontally with a momentum of 6 kg•m/s, is struck head-on by a baseball bat with an impulse of 10 Ns. Compute the speed of the ball after it is struck
You throw a ball at an angle of 40 degrees above the horizontal. How fast must you throw the ball
A civil engineer wishes to plan a curved exit ramp for a highway in a way that a car will not have to rely on friction to round the curve without skidding. In the other words, a car moving at the designated speed can negotiate the curve even while th..
Ultrasound can be used to deliver energy to tissues for therapy. It can penetrate tissue to a depth approximately 200 times its wavelength. what is the approximate depth of penetration
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