A Doppler red shift indicates
a. a shift toward higher frequencies.
b. a shift toward shorter wavelengths.
c. that a light source is receding relative to the observer.
d. none of these.
c
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The elements that we are all made of are common everywhere in the observable Universe
a. True b. False Indicate whether the statement is true or false
An electron inside a hydrogen atom is confined to within a space of 0.110 nm. What is the minimum uncertainty in the electron's velocity? (h = 6.626 × 10-34 J ? s, mel = 9.11 × 10-31 kg)
A) 3.31 × 106 m/s B) 4.71 × 106 m/s C) 3.30 × 108 m/s D) 4.71 × 108 m/s E) 3.30 × 1010 m/s
Name three differences between terrestrial and jovian planets
What will be an ideal response?
CFC's in the stratosphere ________
a. provide protection from incoming solar radiation b. dissipate within days c. combine with NOX to produce smog d. adsorb ultraviolet light from the sun e. contribute to ozone destruction