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Light of wavelength 418 nm is incident normally on a film of water 1.0 µm thick. The index of refraction of water is 1.33.
(a) What is the wavelength of the light in the water? (nm)
(b) How many wavelengths are contained in the distance 2t, where t is the thickness of the film? (Do not round your answer to a whole number.)
(c) What is the phase difference between the wave reflected from the top of the air-water interface and the one reflected from the bottom of the water-air interface in the region where the two reflected waves superpose? (rad)
A 103.29 cm-long steel string with a linear density of 2.56 g/m is under 240.31 N tension. What is the wavelength of the sound wave that reaches your ear in a 11.65oC room
For the motion from the initial free until the piece of wood comes to rest, what is the total amount of work completed by friction.
the position of a cart that is oscillating on a spring is given by the equation x= 12.3 cm cos [(1.26 s-1)t], velocity and acceleration of the cart
Two people with a combined mass of 120 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress by 7.44 cm. Find the total load supported by the springs
A 6.30kg block is pushed 9.45m up a smooth 37.0? inclined plane by a horizontal force of 80.0N . If the initial speed of the block is 3.35m/s up the plane. Calculate the initial kinetic energy of the block
Your car's fan belt turns a pulley at 3.15rev/s . When you step on the gas for 1.60s , the rate increases steadily to 5.95rev/s . What's the pulley's angular acceleration
explain how much charge is on each plate. What is the work done by the field on the electron.
You're driving down the highway late one night at 17 {rm m}/{rm s} when a deer steps onto the road 45 {rm m} in front of you. Your reaction time before stepping on the brakes is 0.50 {rm s} and the maximum deceleration of your car is 12 {rm m/s^2}..
What is the magnitude of vertical component of its velocity as it strikes the ground.
A 10m^3 tank of compressed natural gas has an absolute pressure of 400 kPa at a temperature of 27 C. What is the mass of the gas in the tank
A plane is flying at an altitude of 10000 metres, and the pitot tube measures a gauge pressure of 10kPa. What is the airspeed of the plane
A pair of long rods, each of length L and mass M are connected to a hoop of mass M and radius L/2 to form a 4-spoked wheel. Determine the instantaneous velocity of the mass after the wheel has turned one revolution
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