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Question: A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the gasoline and has a refractive index that is between 1.00 and 1.40. Light that has a wavelength of 626 nm (in vacuum) shines perpendicularly down through the air onto this film, and in this light the film looks bright due to constructive interference. The thickness of the film is 298 nm and is the minimum nonzero thickness for which constructive interference can occur. What is the refractive index of the film?
An AC voltage source is connected to a resistor R = 1.45 x 102 ohm. Compute the rms voltage across the resistor
Two fixed navigation beacons mark the approach lane to a star. Determine the time interval of the passage
A point charge of magnitude q is at the center of a cube with sides of length L. What is the electric flux through each of the six faces of the cube?
What is the tangential acceleration of a bug on the rim of a10-inch diameter disk if the disk moves from rest to an angular speed of 99 rev/min in 3.0 s? When the bug in the previous problem is at his final speed of 99 rev/s , what is the tangential ..
a dynamite blast at a quarry launches a rock straight upward and 2.3 s later it is rising at a rate of 14 ms. assuming
An AC generator has 100 rectangular loops on its armature. Each loop is 11 cm long and 6 cm wide. The armature rotates at 1400 rpm about an axis parallel to the long side. If the loop rotates in a uniform magnetic field of 0.7 T, which is perpendicul..
What is the probability that a diatomic molecule, modeled as a harmonic oscillator, will be observed outside the classical limit of motion?
Three concentric uniformly charged isolating shells (hollow spheres) of radii 6cm, 10cm, and 20cm each carry a charge. The smallest shell carries 3nC, the medium 4nC, and the largest shell 5nC. Here, concentric means that all three shells share th..
Two rubber bands cause an object to accelerate with acceleration a. How many rubber bands are needed to cause an object with half the mass to accelerate five times as quickly
In a 30.0-s interval, 450 hailstones strike a glass window of area 0.600 m2 at an angle of 45.0° to the window surface. Find the average force on the window
Two converging lenses, separated by a distance of 40.5 cm, are used in combination. The first lens, located to the left, has a focal length of 15.7 cm. Find the intermediate image distance relative to the corresponding lenses
A car is driven 125.0 km west and then 65.0 km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
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