A swimming pool is filled to a depth of 2.0 m. How deep does the pool appear to be from above the water, which has an index of refraction of 1.33?
A) 1.5 m
B) 1.33 m
C) 2.5 m
D) 3.0 m
E) 4.0 cm
A
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Simple Harmonic Motion: If the frequency of a system undergoing simple harmonic motion doubles, by what factor does the maximum value of acceleration change?
A. 4
B. 2
C. 
D. 2/?
Which of the following is a characteristic that Pluto shares with the Jovian planets?
A. It is mostly composed of hydrogen and helium. B. It has a ring system. C. It has a thick atmosphere. D. All of these choices are correct. E. None of these choices is correct.
Nellie whirls a tether ball in a horizontal circular path over her head. If the action force is Nellie pulling on the string, the reaction force is
A) Nellie pulling on the string. B) the string pulling on Nellie. C) the ball pulling on the string. D) none of the above
How much energy (in eV) does a photon of orange light (? = 609 nm) have? (h = 6.63 × 10^?34 J?s, c = 3.00 × 10^8 m/s, 1 eV = 1.60 × 10^?19 J, and 1 nm = 10?9 m)
a. 3.27 eV b. 0.31 eV c. 2.04 eV d. 0.68 eV e. 5.23 eV