The emission line for a given atom shows spectral features at the ________ location as in its absorption spectrum
Fill in the blank(s) with correct word
same
Physics & Space Science
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Which of the following worlds show evidence of dried up rivers and lake beds?
A) the Moon B) Mercury C) Venus D) Mars E) all of the above
Physics & Space Science
Is it possible to do work on an object that remains at rest?
a. Yes b. no
Physics & Space Science
All of the following are scalars, except
A) mass. B) force. C) temperature. D) distance. E) time.
Physics & Space Science
What is the force exerted by the Sun on the earth? The mass of the Sun is 1.99 × 1030 kg, the mass of the earth is 5.97 × 1024 kg, the Earth-Sun distance is 1.50 × 1011 m, and G = 6.67 × 10-11 N m2/kg2
A) 5.28 × 1033 N B) 3.52 × 1022 N C) 8.85 × 108 N D) 7.25 × 1019 N E) 9.32 × 1011 N
Physics & Space Science