Define the amplitude of a wave, and give an example
Amplitude is the maximum displacement of a wave from its equilibrium position. An
example is the maximum displacement of the vibrating string which moves
0.100 meters above and below its equilibrium position. The amplitude in this case is
0.100 meters.
You might also like to view...
The Sun is about how far from Earth?
A. 93,000,000 km B. 380,000 km C. 150,000,000 km D. one light-year
Infrared observations are used to determine the mass of asteroids because ________.
A. most asteroids are made of dark minerals which are more efficient at reflecting infrared light than visible light B. the Hubble Space Telescope only has infrared cameras C. the infrared radiation is the glow of heat from the asteroid, and larger asteroids emit more infrared light D. asteroids reflect too little visible light to use optical telescopes for the measurements
A satellite orbits the earth a distance of 1.50 × 107 m above the planet's surface and takes 8.65 hours for each revolution about the earth. The earth's radius is 6.38 × 106 m. The acceleration of this satellite is closest to
A) 0.870 m/s2. B) 0.0690 m/s2. C) 9.80 m/s2. D) 2.72 m/s2. E) 1.91 m/s2.
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 × 10^?46 kg ? m2 . The maximum rotational kinetic energy (in eV) is
a. 0.6 b. 0.2 c. 0.4 d. 0.8 e. 1.0