A) The wave speed is unchanged.
B) The wave speed is halved.
C) The wave speed is quadrupled.
D) The wave speed decreases to about 71% of v.
E) The wave speed increases by about 41%.
Correct Answer
verified
A) 112 km/hr
B) 31.2 km/hr
C) 56.0 km/hr
D) 62.0 km/hr
E) 122 km/hr
Correct Answer
verified
A) 30 dB
B) 40 dB
C) 50 dB
D) 60dB
E) 70 dB
Correct Answer
verified
A) 626 Hz
B) 600 Hz
C) 679 Hz
D) 577 Hz
E) 970 Hz
Correct Answer
verified
A) the period.
B) the square root of the frequency.
C) the amplitude.
D) the amplitude squared.
E) None of these is correct.
Correct Answer
verified
A) double.
B) quadruple.
C) be reduced 50%.
D) be reduced to 25% of its previous value.
E) be unchanged.
Correct Answer
verified
A) 1000 Hz
B) 1500 Hz
C) 2000 Hz
D) 4500 Hz
E) 6000 Hz
Correct Answer
verified
A) 1
B) 2
C) 3
D) 4
E) 5
Correct Answer
verified
A) 1
B) 2
C) 3
D) 4
E) 5
Correct Answer
verified
A) Both methods of energy transfer follow the conservation of energy principle.
B) Energy transfer by particles follows the conservation of energy principle but waves do not.
C) Energy transfer by waves follows the conservation of energy principle but particles do not.
D) Whether the transfer of energy by a wave follows the conservation of energy principle depends on the speed of the wave.
E) Whether the transfer of energy by a particle follows the conservation of energy principle depends on the speed of the particle.
Correct Answer
verified
A) kA
B) gy
C) gy + kA
D) gy - kA
E) kA - gy
Correct Answer
verified
A) the frequency remains the same but the wavelength is shorter.
B) the frequency is higher but the wavelength stays the same.
C) the frequency is lower but the wavelength is longer.
D) the frequency is lower and the wavelength is shorter.
E) both the frequency and the wavelength remain the same.
Correct Answer
verified
A) 6.2 10-14 W
B) 1.0 10-6 W
C) 7.0 10-11 W
D) 1.4 10-2 W
E) 70 W
Correct Answer
verified
A) double the angular frequency of the source.
B) double the amplitude of the wave.
C) double the tension in the string.
D) quadruple the tension in the string.
E) halve the linear density of the string.
Correct Answer
verified
A) 4.0 m/s
B) 10 m/s
C) 0.13 km/s
D) 0.50 km/s
E) 2.0 km/s
Correct Answer
verified
A) 10,050 dB
B) 500,000 dB
C) 90 dB
D) 2000 dB
E) 54 dB
Correct Answer
verified
A) 0.165 m
B) 165 cm
C) 16.5 mm
D) 1650 10-4 m
E) 1.65 mm
Correct Answer
verified
A) 176 dB
B) 90 dB
C) 352 dB
D) 94 dB
E) 92 dB
Correct Answer
verified
A) 1000
B) 30
C) 9
D) 100
E) 300
Correct Answer
verified
A) twenty; twenty
B) one hundred; twenty
C) twenty; four
D) one hundred; four
E) two; two
Correct Answer
verified
Showing 101 - 120 of 122
Related Exams