Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2sin(4x)cos(3t), where x is in m and t is in s. What is the speed (in m/s) of the interfering waves?
A. 0.75
B. 0.25
C. 1.3
D. 12
E. 3.0
Answer: A
Physics & Space Science
You might also like to view...
How long have mammals been present on Earth?
A) about 1 million years B) about 65 million years C) about 225 million years D) about 510 million years
Physics & Space Science
One of the harmonics of a column of air in a tube that is open at one end and closed at the other has a frequency of 448 Hz, and the next higher harmonic has a frequency of 576 Hz. How long is the tube? The speed of sound in air is 343 m/s
A) 1.34 m B) 0.670 m C) 0.335 m D) 1.00 m E) 2.68 m
Physics & Space Science
Work Done by a Gas: A gas is taken through the cycle shown in the pV diagram in the figure. During one cycle, how much work is done by the gas?
A. p0V0 B. 2 p0V0 C. 3 p0V0 D. 4 p0V0
Physics & Space Science
Distinguish an E0 from an E7 galaxy
What will be an ideal response?
Physics & Space Science