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A thin transparent film has an index of refraction of 1.57. It consists of a flat plate with air on both sides of the film. Determine the minimum thickness of the plate in order that light of wavelength ? = 680nm brightly reflects from the film. Assume normal incidence.
A bullet of mass m= 0.0230 kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.30 kg. find the speed of the bullet just before it hits the wood
The working substance of an engine is 1.00 mol of diatomic gas. The engine operates in a cycle consisting of three steps, Find the efficiency of this cycle
A 72.0-kg man is riding an escalator in a shopping mall. obtain the work done on man by the gravitational force
A tanker ship spills oil (n=1.40) into the sea. Looking at this disaster from a helicopter overhead, what predominant wavelength of visible light do you see if the oil is 390nm thick
The gauge pressure at the bottom of a pint of beer, at a depth of 14.6 cm, is 1450 Pa. What is the density of the beer
two displacement vectors when added produce a resultant of magnitude 100km pointing 37° south east. find the magnitude and direction of the other displacement vector.
An ideal spring with a spring constant of 16 N/m is suspended vertically. What is the extension of the spring when the speed is a maximum
Suppose you have a lens system that is to be used primarily for 770 nm light. What is the second thinnest coating of fluorite that would be nonreflective for this wavelength
A sinusoidal voltage ?v = (65 V) sin (140t) is applied to a series RLC circuit with L = 50 mH, C = 150 ?F, and R = 42 ?.
The eye focuses by:
How fast must the bat fly, v_b, to hear a beat frequency of 205 rm {Hz}.
1.calculate the orbital radius of the hydrogen atom for the second principal quantum number.2.calculate the orbital
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