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A scientist notices that an oil slick floating on water when viewed from above has many different rainbow colors reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 nanometer in air. The index of refraction of water is 1.33. The index of refraction of the oil is 1.20. Compute the minimum thickness of the oil slick at that spot?
Using Lorentz Law: You are given a charge moving between two parallel plates. Find the current (I) of a loop given a straight wire
A charged isolated metal sphere of diameter 24.0 cm has a potential of 7400 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere.
Two points are given in polar coordinates by (r,θ) = (2.80 m,50.0°) and (r, θ) = (5.80 m, -62.0°),respectively. What is the distance between them
A submerged submarine alters its buoyancy so that it initially accelerates upward at .325m/s^2. What is the submarine;s average density
physics Each of the following objects has a radius of 0.173 m and a mass of 2.48 kg, and each rotates about an axis through its center, Find the magnitude of the angular momentum of each object
a rubber ball mass 0.27 kg is dropped from a height of 1.8 m onto the floor. just after bouncing from the floor the
A block of wood with volume V floats in waterwith 0.67V submerged.In oil the block floats with 0.85V of its volume submerged. Find the density of the wood. Find the density of the oil.
A new event has been proposed for the Winter Olympics. An athlete will sprint 100 m, starting from rest, then leap onto a 18 kg bobsled. How far will Lisa compress the spring
A 80 kg diver steps off a 13 m tower and drops from rest straight down into the water. If he comes to rest 4.1 m beneath the surface, find out the average resistance force exerted on him by the water.
A father racing his son has three-fifths the kinetic energy of the son, who has half the mass of the father. What is the original speed of the son
Suppose the projectile is traveling 85.0 m/s at its maximum height of y = 272 m. Explain how much work has been done on the projectile by air friction?
two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. the orbital speeds
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