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Question1
Three identical 3.60 masses are hung by three identical springs. Each spring has a force constant of 4.90 and was 15.0 long before any masses were attached to it. How long is each spring when hanging as shown? First isolate only the bottom mass. Then treat the bottom two masses as a system. At last, treat all three masses as a system.
Question2
For your science fair project you have to to design a diffraction grating that will disperse the visible spectrum (400-700 nm) over 30 degrees in first order.
(a) How numerous lines per millimeter does your grating require?
(b) What is first order diffraction angle of light from a sodium lamp (wavelength= 589 nm)?
What are angles of refraction
Compute the average intensity
What is the caused by sun wind in upper atmosphere
What is the breaking strength
What is magnitude of induced emf between the ends of beam
What is phase change as the light is reflected from the top
Distance between focal plane and lens
What are the original charges on each sphere
Establish angles subtended by the moon and the sun
What is velocity of the boat relative to the shore
What is the maximum speed the masses
Evaluate the stability of of Na in the NaCl structure
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