A source emits sound at a fixed constant frequency f.If the source moves away from you faster than the speed of sound in air, you do not hear any frequency but instead a ‘sonic boom.'
a. True
b. False
Indicate whether the statement is true or false
True
You might also like to view...
Slanting Surfaces Without Friction: A 200-N sled of slides down a frictionless hillside that rises at 37° above the horizontal. What is the magnitude of the force that the surface of the hill exerts on the sled?
A. 200 N B. 120 N C. 160 N D. 150 N E. 0 N
What is the magnitude of the magnetic force on a charged particle (Q = 5.0 ?C) moving with a speed of 80 km/s in the positive x direction at a point where Bx = 5.0 T, By = ?4.0 T, and Bz = 3.0 T?
A. 2.8 N B. 1.6 N C. 1.2 N D. 2.0 N E. 0.4 N
Neutrons are good "projectiles" for inducing nuclear reactions because they
a. have no electric charge. b. are themselves unstable. c. are highly energetic. d. have no mass.
Internal human body temperature is often stated to be normal at 98.6°F. What is this temperature on the Kelvin scale?
A) 346 K B) 393 K C) 310 K D) 296 K E) 418 K