A test tone used on a radio has a frequency of 1,000 Hz. What is the wavelength of this sound in air at normal room temperature? (The speed of sound is 344 meters per second.)
0.344 m
You might also like to view...
Which of the following metals is a constituent of iron meteorites?
A) Nickel B) Potassium C) Zinc D) Copper
A chemical reaction is one in which
A. atomic nuclei change form. B. a substance gets hot. C. atoms change mass. D. atoms get rearranged.
In a wind tunnel the pressure on the top surface of a model airplane wing is 8.8 × 10^4 N/m and the pressure on the bottom surface is 9.0 × 10^4 N/m2 . If the area of the top and bottom surfaces of each wing is 2.0 m2, what is the total lift on the model airplane?
a. 2.0 × 10^3 N b. 8.0 × 10^3 N c. 1.6 × 10^4 N d. 3.6 × 10^4 N e. 1.0 × 10^3 N
A reflecting telescope differs from a refracting telescope by using:
a. a concave mirror. b. a convex mirror. c. a system of five converging lenses. d. two converging lenses. e. a single converging lens.