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A film of oil lies on wet pavement. The refractive index of the oil surpasses that of the water. The film has the minimum nonzero thickness such that it appears dark due to destructive interference when viewed in red light (wavelength = 660 nm in vacuum). Assuming that the visible spectrum extends from 380 to 750 nm, what are the visible wavelengths (in vacuum) for which the film will appear bright due to constructive interference?
Two identical objects are placed in a room at 27°C. Object 1 has a temperature of 83°C and object 2 has a temperature of 35°C.What is the ratio of the net power emitted with object 1 to that radiated by object 2?
A symmetric double convex lens with a focal length of 25.0cm is to be made from glass with an index of refraction of 1.53. What should be the radius of curvature for each surface
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
A simple pendulum is made from a 0.55-m-long string and a small ball attached to its free end. how much time elapses before it attains its greatest speed
design a transformer that will provide at the secondary 12v at 5 a when the primary is connected to 120 v 60 hz.
The rod is initially at rest and oriented horizontally and then released so that it swings to the bottom. Illustrate what are all the forces acting on the rod?
Two sides of a triangle are 16.9 cm and 29.5 cm, with tehincluded angle 113o. What is the length of the thirdside? Answer in units of cm. What is the angle opposite the side16.9 cm? Answer in units of o.
A particle of mass 9.82 g and charge 67.7 μC moves during a uniform magnetic field, in a region where the free-fall acceleration is -9.8 m/s2 without falling. The velocity of the particle is a constant 18.3 km/s, which is perpendicular to the magnet..
The spring is then released. If the mass is attached to the spring, explain how far up the slope will the mass move before coming to rest? Express your answer using two significant figures.
on its highest power setting a microwave oven increases the temperature of 0.450 kg of spaghetti by 45.0degc in 140 s.a
The earth has a vertical electric field with a magnitude of approximately 100 V/m near its surface. What is the magnitudeof the potential difference between a point on the ground and pointon the same level as the top of the Washington Monument (555 f..
a 15.0 tank contains 0.209 of helium at 23.0. the molar mass of helium is 4.00 .how many moles of helium are in the
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