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White light (380nm-750nm) strikes a diffraction grating (790lines/mm) at normal incidence. Determine is the highest-order visible maximum that is formed?
A lens is made of a transparent material having an index of refraction of 1.7. One side of the lens is flat, and the otherconvex with a radius of curvature of 28cm.(a) Find the focal length of the lens.
a bar of 24-karat pure gold is supposed to be completely solid. to check this a scientist takes the bar into the lab.
current in a circuit falls from 5.0 a to 0.0 a in 0.1 s. if an average emf of 200 v induced give an estimate of the
Bored, a boy shoots his pellet gun at a piece of cheese that sits, keeping cool for dinner guests, on a massive block of ice. find the coefficient of friction between the cheese and ice
A 2.62 kg mass attached to a light string rotates on the horizontal, frictionless table. The radius of the circle is 0.4207 m, and string can support a mass of 14.70 kg before breaking.
Suppose we have a rocket that has an acceleration of 8.92 m/s2 in the x direction. What would the acceleration in the y direction of an astronaunt be inside the rocket. Assume that the astronaunt is on Earth and that there is only an x (horizontal) a..
A 35-mm slide (picture size is actually 24 by 36 {mm) is to be projected on a screen 2.10 m by 3.15 m placed 5.30 m from the projector. What focal-length lens should be used if the image is to cover the screen? Answer to be in mm please.
Suppose a star with radius 8.39 multiply.gif 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation. compute the surface temperature of the star
What is the horizontal distance the airplane engine falls. find out the time that was recorded on Earth.
Calculate the camel's eastward displacement while he crosses the desert. reply in units of km.
A 157g ball is tied to a string. It is pulled to an angle of 8.00 degrees and released to swing as a pendulum. How long is the string
Two thin lenses with a focal length of magnitude 19.5 cm, the first diverging and the second converging, are located 14.6 cm apart. What is the height of the final image
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