A series of ocean waves are moving past a surfer at a frequency of 25 waves per hour. Approximately how many waves would the surfer expect during 41 minutes?
a. 1025 waves
b. 17 waves
c. 25 waves
d. 37 waves
Answer: b. 17 waves
You might also like to view...
An adiabatic process is characterized by the absence of
A) entropy. B) pressure change. C) heat exchange. D) temperature change. E) none of the above
What type of galaxy is the Milky Way?
a. Spiral b. Elliptical c. Regular d. Irregular
A 90.0 kg person is running up the stairs at 0.500 m/s. The power needed to run up the stairs is
A. 441 Watts. B. 395 Watts. C. 302 Watts. D. 275 Watts. E. 257 Watts.
The 1420 MHz (21 cm) radio line generated by neutral hydrogen atoms is a good choice for interstellar communications because
A) it is the easiest radio frequency to generate B) it is the only radio frequency that is not blocked by interstellar matter C) all intelligent civilizations should be aware of its universal significance and would probably also think of sending and receiving signals at this frequency D) it is the only frequency to which radio telescopes can be tuned