Ellen says that whenever the acceleration is directly proportional to the displacement of an object from its equilibrium position, the motion of the object is simple harmonic motion. Mary says this is true only if the acceleration is opposite in direction to the displacement. Which one, if either, is correct?
A. Ellen, because ?2 is directly proportional to the constant multiplying the displacement and to the mass.
B. Ellen, because ?2 is directly proportional to the mass.
C. Mary, because ?2 is directly proportional to the constant multiplying the displacement and to the mass.
D. Mary, because ?2 is directly proportional to the mass.
E. Mary, because the second derivative of an oscillatory function like sin(?t) or cos(?t) is always proportional to the negative of the original function.
Answer: E
You might also like to view...
The Solar and Heliospheric Observatory (SOHO) is positioned:
A) in a geosynchronous orbit around the Earth. B) in near-Earth orbit. C) about 1.5 million kilometers from Earth at the L1 Lagrangian Point. D) on the far side of the Sun at the L3 Langrangian Point. E) on the far side of the Moon.
Heat is transferred through solids primarily by the process of
a) convection. b) conduction. c) condensation. d) radiation.
What is the phase difference in a Young's double slit experiment where the intensity is half that of the central maximum?
A) 45° B) 180° C) 90° D) 23° E) 245°
In a wave, the distance from peak to peak is called the wave's ________
Fill in the blank(s) with correct word