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A thin film of plastic (n = 1.43) coats a piece of glass (n = 1.6). What is the minimum thickness of the film for which 500 nm light does not reflect off of it?
A double-slit experiment is set up using a helium-neon laser (?=633nm). Then a very thin piece of glass (n=1.50) is placed over one of the slits. How thick is the glass
A car moving at 10 m/s encounters a bump that has a circular cross-section with a radius of 30 m. What is the normal force exerted by the seat of the car on a 60-kg passenger
An Airbus A320 jetliner has a takeoff mass of 75,000 kg. It reaches its takeoff speed of 98m/s (220mph ) in 38s. What is the thrust of the engines
A mail bag with a mass of 100kg is suspended by a vertical rope of length 8.00m. What horizontal force is necessary to hold the bag in a position displaced sideways a distance 1.00m from its initial position
Two identical uniform bricks of length 26 m are stacked over the edge of a horizontal surface. What maximum overhang is possible for the two bricks (without tipping)
The primary winding of a transformer has 1200 turns, and is connected to 120 V A.C. (r.m.s. value). The secondary has a 25 W load resistor, Continuing, how many turns are in the secondary winding
You illuminate a slit of width 0.0527 mm with light of wavelength 715 nm and observe the resulting diffraction pattern on a screen that is situated 2.39 m from the slit
An electric charge is uniformly distributed throughout a 12cm radius non conducting sphere. what is the volume charge density of the sphere
ow does this change in amplitude affect the wave's frequency.
A parallel-plate capacitor has the volume between its plates filled with plastic with dielectric constant K. Use Gauss's law to calculate the magnitude of the electric field in the dielectric
In a television picture tube, electrons strike the screen after being accelerated from rest throughout a potential difference of 28000 V.
A doubly charged ion is accelerated to an energy of 35.0 keV by the electric field between two parallel conducting plates separated by 2.20 cm
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