What kind of galaxy is the 'Milky Way?'
A: Spiral.
B: Elliptical.
C: Compound.
D: Dwarf.
E: Irregular.
Ans: A: Spiral.
Physics & Space Science
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A kangaroo completes 2 hops in 4 seconds. What is the period of the hops?
a) 2 b) 0.5 c) 8 d) 6
Physics & Space Science
If an electron is determined to be at x = 2.000 cm ± 0.0010 cm, what is the minimum uncertainty in the x component of its velocity? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
What will be an ideal response?
Physics & Space Science
_________________ galaxies are very luminous at X-ray and ultraviolet wavelengths and have broad emission lines in their spectra
Fill in the blank(s) with correct word
Physics & Space Science
In composition, asteroids and meteoroids are most like:
A) jovian planets. B) Kuiper Belt objects. C) comets. D) terrestrial planets. E) the moons of Jupiter.
Physics & Space Science