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A soap lm (nf = 1:33) is 465 nm thick and lies on a glass plate (ng = 1:52). Sunlight, whose visible wavelengths (in vacuum) extend from 380 nm to 750 nm, travels through air and strikes the lm perpendicularly. For which wavelenght(s) of visible light does destructive interference of light result in the absence of this/these color(s) in light reflected from the film?
A 98 kg waterskier is being pulled at a constant velocity. The horizontalpulling force is 270N. Find the magnitude of the total resistive force exerted on the skier by the waterand air
A 51.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 ? 10-8, What must be the diameter of the wire
If a car moving at 82 takes 300 to stop with uniform acceleration after its brakes is applied, how far will it take to stop under the same conditions if its initial velocity is 41.
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the spontaneous emission wavelength
Assume that each person is about the similar distance from the center of the field and can generate the same level of sound intensity. How numerous people are at the game.
A small object, which has a charge q = 7.4 µC and mass m = 9.85 10-5 kg, is placed in a constant electric field. Determine the magnitude of the electric field
An electron with an initial speed of 4.90×105m/s is brought to rest by an electric field. What was the potential difference that stopped the electron
A 6.03-g bullet is moving horizontally with a velocity of +342 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). What is the velocity of the second block after the bullet imbeds itself
the brakes of a truck cause it to slow down by applying a retarding force of 3.0x103n to the truck over a distance of
You create a plot of T2 (in s2) vs. L (in m) and the linear fit of your graph gives a slope of 3.7084 ± 0.0062. What is the value of the local gravitational constant, g
Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density, E=sigma/2epsilon, derive the electric field
Brain injuries generally occur any time the brain's acceleration reaches 100 g for even a short time, Consider a car running into a solid barrier
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