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Physics, 21.06.2019 17:40
Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars
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Physics, 21.06.2019 22:40
The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively
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Physics, 22.06.2019 08:00
Which notation is used to represent an alpha particle? a. b. c. d.
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Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Two point sources are vibrating in phase producing two-dimensional water wave
interference. The sec...
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