Which of the following sound frequencies lie(s) outside the audible range?
a. 20 Hz
b. 47 kHz
c. 4300 Hz
d. All of these
b
You might also like to view...
For general projectile motion if we neglect air, the vertical component of a projectile's acceleration
A) is always zero. B) remains a non-zero constant. C) continuously increases. D) continuously decreases. E) first decreases and then increases.
A constant volume closed container of gas is at a pressure 1.00 × 105 N/m2 and a temperature 20°C. What is the pressure if the temperature of the gas is increased to 60.0°C?
A) 0.330 × 105 N/m2 B) 9.00 × 105 N/m2 C) 0.880 × 105 N/m2 D) 3.00 × 105 N/m2 E) 1.14 × 105 N/m2
The principle of equivalence is primarily concerned with which of the following:
A 10-mH inductor is connected in series with a 10-ohm resistor, a switch and a 6-volt battery. What is the time constant of the circuit? How long after the switch is closed will the current reach 99 percent of its final value?