The existence of amino acids in carbonaceous chondrites proves that life on Earth originated in space.
Answer the following statement true (T) or false (F)
False
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If the dust around a protostar radiates most strongly at 30 microns or 30,000 nm, what is the approximate temperature of that dust? Hint: T in K = 3,000,000/wavelength in nm or use Wien's Law
a. 100,000 K b. 10,000 K c. 1000 K d. 100 K e. 10 K
The resolution limit of a circular aperture telescope is
A) inversely proportional to wavelength. B) proportional to frequency of light. C) less than that of a square aperture whose diagonal equals the diameter. D) inversely proportional to aperture size.
A 10 kg mass is attached to the end of a 2.00 m brass rod with a 1 mm diameter. If the tensile modulus of brass is 
then the frequency of the simple harmonic motion of the mass is
A. 6.20 Hz. B. 7.51 Hz. C. 7.95 Hz. D. 8.21 Hz. E. 9.51 Hz.
An object is 50 cm from a concave mirror with radius of curvature of magnitude 60 cm. What is the lateral magnification produced by the mirror?
A) +0.40 B) +0.70 C) +1.5 D) -0.70 E) -1.5