Stellar parallax provides concrete proof that the
A) Earth rotates on its axis
B) Earth is roughly spherical
C) Earth moves around the Sun
D) Moon moves around the Earth
C
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You leave a black, spherical bowling ball out in the hot sun and it warms to a scalding hot temperature of 80ºC. The ball has a radius of 0.25 m (25 cm). What is the total power being radiated outward from this hot ball at this temperature?
In a hydrogen atom, a given electron has n = 7. How many possible values can ? have?
A) 6 B) 7 C) 15 D) 98
_________is the minimum distance between two points that can be observed.
Fill in the blank(s) with the appropriate word(s).
Fusion occurs in __________ numbers of atomic mass nuclei whereas fission occurs in ___________ numbers of atomic mass nuclei up to _________
a. high, low, uranium b. low, high, uranium c. high, low, iron d. low, high, iron