What is the frequency of the shortest wavelength light that can be detected by the average human eye?
a. 0.0025 Hz
b. 7.5 × 10^14 Hz
c. 3.0 × 10^8 m/s
d. 700 nm
e. 400 nm
b
Physics & Space Science
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A standing wave is oscillating at 690 Hz on a string, as shown in the figure. What is the speed of traveling waves on this string?
A) 280 m/s B) 410 m/s C) 210 m/s D) 140 m/s
Physics & Space Science
According to quantum theory, the electron in a particular quantum state of the hydrogen atom has
A) a definite position. B) a definite energy. C) a definite velocity. D) All of the above. E) None of the above.
Physics & Space Science
What are causes of diffusional mass transfer?
What will be an ideal response?
Physics & Space Science
A 5-kg shark swimming at 1 m/s swallows an absent-minded 1-kg fish swimming toward it at 4 m/s. The speed of the shark after his meal is
A) 1/2 m/s. B) 1/5 m/s. C) 1/6 m/s. D) 2/3 m/s. E) 3/2 m/s.
Physics & Space Science