The intensity of a sound wave is directly proportional to
A. the frequency.
B. the amplitude.
C. the square of the amplitude.
D. the square of the speed of sound.
E. none of these answers are correct
C. the square of the amplitude.
You might also like to view...
A 10 m long wire carrying a current of 22 A makes an angle of 37
with the Earth's magnetic field of 0.51 mT. What is the magnetic force on the wire?
A. 0.11 N B. 0.068 N C. 0.19 N D. 0.090 N E. 0.011 N
A cylinder rolls, without slipping, down an incline directly toward you. The cylinder’s angular velocity 
points in which direction?
A. Toward you B. Away from you C. To your right D. To your left E. Some other direction (specify
A set value for a fundamental quantity is called a(n) ______________ unit
Fill in the blank(s) with correct word
Passing arsenic contaminated water through a long pipe filled with sand and iron powder leads to removal of the arsenic by
A) a physical change. B) an oxidation-reduction reaction. C) ion exchange. D) filtering out the suspended arsenic particles. E) only a and b