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Monochromatic light (vacuum = 538 nm) shines on a soap film (n = 1.33) that has air on either side of it. The light strikes the film perpendicularly. What is the minimum thickness of the film for which constructive interference causes it to look bright in reflected light?
A proton is accelerated from rest across a potential difference of 4V. What is the power delivered to the proton by the magnetic field
Light from a hydrogen discharge passes through a diffraction grating and registers on a detector 1.5 m behind the grating. find the position of the second member of the Paschen series
An object which has a mass of 3.80 kg has been placed in a small spot of sun for 11.3 min which is shining through a window in a house. what is the temperature of the object after this time period
A railroad engine weighs three times as much as a freight car. If the engine coasts at 9 km per hour into a freight car that is initially at rest
A uniform electric field of magnitude 405 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. What is the work done by the field on the electron?
The intensity level produced by a jet airplane at a certain location is 163 dB. Calculate the intensity of the sound wave generated by the jet at the given location.
Ted is sitting in his lawn chair when Stella flies directly overhead, going southeast at 114.5 m/s. Five seconds later, a firecracker explodes 190 m east of Ted. What are the coordinates of the explosion in Stella's reference frame?
Waly Whacko claims to have invented a heat engine that will revolutionize industry. What error did he made in his choice of temperature scale
a piano string is under a tension of t 778n. when struck the wave has a period of t 0.6ms and a wavelength of
Two bullets are fired at the same time with the same kinetic energy. If one bullet has twice the mass of the other, which has the greater speed
A river has a steady speed of 0.500 m/s. A student swimsupstream a distance of 1.00 km and swims back to the startingpoint. how long does the trip take
A magnetic field is perpendicular to a 0.0417 m x 0.0636 m rectangular coil of wire that has 108 turns, What is the magnitude of the change in the magnetic field
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