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A thin film of oil (n = 1.22) is located on smooth, wet pavement. When viewed from a direction perpendicular to the pavement, the film reflects most strongly red light at 640 nm and reflects no light at 427 nm. What is the minimum thickness of the oil film?
An ideal gas expands isothermally, performing 4.30×103J of work in the process. Calculate the heat absorbed during this expansion
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises to a height of 192 m. You estimate your line of sight with the top of the arch to be 4.5° above the horizontal. Approxim..
A superball with a mass m = 61:6 g is dropped from a height h = 1.76m. What is the momentum change of the ball during its collision with the floor
An object is placed 55.5 cm from a screen. Where should a converging lens of focal length 8.0 cm be placed to form an image on the screen, Find the magnification of the lens
A bicycle and its rider together has a mass of 78 kg. What power output of the rider is required to maintain a constant speed of 5.0 m/s (about 11.2 mph) up a 5.0% grade
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
Two long parallel wires carry currents of 2.83 A and 5.41 A. Find the separation distance of the wires expressed in millimeters
The internal energy of a system increases by 100 J while 800 J of work are performed on it. What was the heat flow into or out of the system
A 100 kg running back is moving with a speed of 4.0m/s. What average force must be applied to stop him in 0.25 s
At what angle are the photons scattered such that the electron’s velocity is 1% of the speed of light when the incoming light has wavelength λ = 0.05nm? For the same incoming photons, what is the photon scattering angle such that the electrons hav..
a 5.0 kg block slides from rest down a frictionless slope, then enters a flat area where Uk is 0.50. What is the speed of the block at the base of the slope
a certain system has 6x10624 degrees of freedom, which internal energy increases by 1%; then, by what factor does the number of accessible estates increase
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