A material has an index of refraction of 1.92 for light from a 560 nm source. What is the speed of light for this wavelength within the material? (c = 3.00 × 10^8 m/s)
a. 2.19 × 10^8 m/s
c. 1.56 × 10^8 m/s
b. 4.68 × 10^8 m/s
d. 1.92 × 10^8 m/s
C
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A. 150 ? B. 200 ? C. 250 ? D. 100 ? E. 300 ?
To what three types of modern survivors can the masses of the protogalactic blobs be compared?
What will be an ideal response?
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Indicate whether the statement is true or false
Two small objects, with masses m and M, are originally a distance r apart, and the gravitational force that they exert on each other has magnitude F. The second object has its mass changed to 2M, and the distance is changed to r/4
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