Our Sun's spectral temperature type is classified as a(n) ____ on the spectral sequence
a. O star
b. F star
c. G star
d. K star
e. M star
c
Physics & Space Science
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The distance from New York to London is 3 470 miles. If a plane takes 6.0 hours to fly this distance, what is the plane's average speed in kilometers per hour? 1 mile = 1.609 km
a. 2 200 b. 620 c. 390 d. 930
Physics & Space Science
What phenomenon is created by two tuning forks, side by side, emitting frequencies, which differ by only a small amount?
a. resonance b. interference c. the Doppler effect d. beats
Physics & Space Science
The maximum efficiency of a heat engine operating between 2°C and 200°C will be about ________
a. 10% b. 40% c. 60% d. 90% e. 100%
Physics & Space Science
What is Astronomy?
What will be an ideal response?
Physics & Space Science