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What is the thinnest film of oil (index of refraction 1.40) floating on water in which green light (λ= 500 nm in air) is essentially eliminated by destructive interference from a beam of white light incident normally on this film? If the oil film were on glass (n=1.5), what thickness would be required?
a single square loop of wire 23.7 cm on a side is placed with its face parallel to the magnetic field between the pole
A 0.75 kg object is suspended by a string from the ceiling of a car while the car travels in a 30 m radius circle at 25m/s. What angle does the string make with the vertical?
when the sun is directly overhead a hawk dives toward the ground with a constant velocity of 5.10 ms at 67.0deg below
A crate on a motorized cart starts from rest and moves with a constant eastward acceleration of a = 2.50m/s^2. What is the instantaneous power supplied by this force
A block with a weight of 3.0 N is at rest on a horizontalsurface. A 1.0 N upward force is applied to the block by meansof an attached vertical string. What are the (a) magnitude of and(b) direction of the force of the block on the horizontalsurface?
an apple weighs 1.01n . when you hang it from the end of a long spring of force constant 1.41nm and negligible mass it
When a 370 nF air capacitor (1 nF =10-9 F) is connected to a power supply, the energystored in the capacitor is 1.85 10-5 J. While the capacitor is kept connected to the power supply, a slab ofdielectric is inserted that completely fills the space b..
Draw a large circle. Now, place the major surface pressure and wind belts of the world at their appropriate latitudes - Explain how and why the average surface pressure features shift from summer to winter?
A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, twelve years have elapsed on earth, and 9.2 years have elapsed on board the ship. How far away (in meters) is the planet according to t..
an iron casting containing a number of cavities weighs 5.70e3 n in air and 3.74e3 n in water. what is the total volume
A Gaussian surface in the form of a hemisphere of radius R = 1.0 m lies in a uniform electric field of magnitude E = 6.80×106 N/C. What is the flux through the base portion of the surface
You throw a stone vertically upward with an initial speed of 6.0 m/s from a third-story office window, Find the time the stone is in flight
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