The speed of sound in air is a function of which one of the following?
a. wavelength
b. frequency
c. temperature
d. amplitude
c
You might also like to view...
Momentum: A satellite, initially at rest in deep space, separates into two pieces, which move away from each other. One piece has a mass of 190 kg and moves away with a speed 0.500c, and the second piece has a mass of 250 kg and moves in the opposite direction. What is the speed of the second piece?
A. 0.212c B. 0.380c C. 0.402c D. 0.473c E. 0.500c
What do we mean when we say that the Sun is in gravitational equilibrium?
A) There is a balance within the Sun between the outward push of pressure and the inward pull of gravity. B) The Sun maintains a steady temperature. C) The hydrogen gas in the Sun is balanced so that it never rises upward or falls downward. D) The Sun always has the same amount of mass, creating the same gravitational force.
Consider three galaxies, Alpha, Beta and Gamma. An observer in Beta sees the other two galaxies each moving away from him in opposite directions at speed 0.70c. At what speed would an observer in Alpha see the galaxy Beta moving?
A) 0.82c B) 0.70c C) 0.94c D) 0.35c E) 0.57c
The fast, downslope movement of large blocks of weathered materials is known as a
a. solifluction. b. slump. c. rock flow. d. landslide.