Equation of Traveling Waves: What are the wavelength (in meters) and frequency (in hertz) of a wave whose displacement is given by the equation y = 0.5 sin(0.20x + 120t), where x and y are in meters and t is in seconds?
A. 10 m, 0.50 Hz
B. 5.0 m, 10 Hz
C. 19 m, 120 Hz
D. 31 m, 19 Hz
E. 0.20 m, 120 
Hz
Answer: D
You might also like to view...
What is Tunguska?
A) the site of an asteroid impact that occurred in Siberia in 1908 B) a postulated binary companion to the Sun thought to be responsible for mass extinctions C) a long period comet that struck Jupiter in 1994 D) the Gulf of Mexico basin that is the crater of the asteroid impact that caused the mass extinction of the dinosaurs 65 million years ago E) a newly discovered moon of Pluto
A planar cross section through two spherical waves emanating from the sources S1 and S2 in the plane is shown in the figure. The black circles are one and two wavelengths from their respective sources. The lighter circles are one half and one and a half wavelengths distant from their respective sources. If the phase at S1 and S2 is zero at this
instant, and the waves shown arriving at P1 both arrive with amplitude A, the magnitude of the phase angle of each wave at point P1 (in radians) is
a.
0.
b.
?.
c.
2?.
d.
3?.
e.
?/2.
A rock bed used for thermal storage has washed rocks of ½ inch nominal diameter. The bed is 5 feet high, 5 feet wide and 8 feet long. One thousand cubic feet per minute (cfm) of air passes vertically through the rock bed. Estimate the convective heat transfer coefficient for the air/rock bed under this flow condition.
What will be an ideal response?
How did ancient peoples of central Africa predict the weather?
What will be an ideal response?