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An cylindrical opaque drinking glass has a diameter 3.1 cm and height h, as shown in the figure. An observer's eye is placed as shown (the observer is just barely looking over the rim of the glass). When empty, the observer can just barely see the edge of the bottom of the glass. When filled (with a transparent liquid with an index of refraction of 1.18) to the brim, the observer can just barely see the center of the bottom of the glass.
Calculate the angle θr. Answer in units of degrees.
an object located at the origin and having a mass M explodes into three pieces having masses M/4, M/3, and 5M/12. what are the velocity components of the third piece
In this problem, use 343 m/s for the speed of sound in air. what is the wavelength of the waves on the string
Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
A photographer uses his camera, whose lens has a 40mm focal length, to focus on an object 5.0m away. How far must the lens move to focus on this second object
What is the resulting angular speed of the platform and what is the ratio of the new kinetic energy of the system to the original kinetic energy?2
A flat uniform circular disk (radius = 2.60 m, mass = 1.00 x 102 kg) is initiallystationary. Find the resulting angular speed of the disk
a train consists of 50 cars each of which has a mass of 7.2times 103kg. the train has an acceleration of7.9 times
A wire of Nichrome (a nickel-chromium-iron alloy commonly used in heating elements) is 1.5 meter long and1.9 mm2 in cross sectional area. Find what is the conductivity of Nichrome
A baseball thrown at an angle of 55.0? above the horizontal strikes a building 17.0m away at a point 6.00m above the point from which it is thrown. Find the magnitude of the initial velocity of the baseball
Starting from rest, a 5.5-kg block slides 3.00 m down a rough 30.0° incline, Determine the work done by the friction force between block and incline
A point source of light illuminates an aperture 4.00m away. A 15.0cm- wide bright patch of light appears on a screen 1.00m behind the aperture. How wide is the aperture
Two plane mirrors are facing each other they are parallel 3.00 cm apart and 17.0 cm in length a laser beam is directed at the top mirror from the left edge of the bottom mirror what is the smallest angle of incidence with respect to the top mirror su..
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