A) Explain which star is apparently brighter to you as viewed from Earth on a clear night, a star with a negative value or a star with a positive value. b) If star A has an apparent visual magnitude that is more negative than star B, which is the brighter star?
What will be an ideal response?
a) The negative star is the apparently brighter star. b) The more negative value of apparent magnitude is the brighter star.
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The apparent angular shift of any object across a distant background, when viewed from two different places, is called ________ shift
Fill in the blank(s) with correct word
Relative Velocity: On a calm day with no wind, you can run a 1500-m race at a velocity of 4.0 m/s. If you run the same race on a day when you have a constant headwind that slows your speed by 2.0 m/s, how much time would it take you to finish the race?
A. 250 s B. 750 s C. 1125 s D. 9000 s
The atmosphere on Mercury is due to
A) volcanic outgassing. B) evaporation. C) sublimation. D) bombardment. E) There is no detectable atmosphere on Mercury.
What wavelength monochromatic source in the visible region (390 to 710 nm) can be used to constructively reflect off a soap film (n = 1.46) if the film is 78.0 nm thick?
a. 467 nm b. 386 nm c. 456 nm d. 404 nm e. 499 nm