When a guitar is tuned to adjust it pitch, what is it that is changed?
A) The wavelength of the fundamental.
B) The amplitude of the fundamental.
C) The frequency of the fundamental.
C
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A 4.00 kg object is moving at 5.00 m/s EAST. It strikes a 6.00 kg that is at rest. The objects have an elastic collision. The velocity of the 4.00 kg object after the collision is at an angle of 30.0 degrees SOUTH of EAST. The velocity of the 4.00 kg mass after the collision is
A. 5.78 m/s. B. 4.56 m/s. C. 3.55 m/s. D. 1.67 m/s. E. 2.66 m/s.
In the symbol for the Hubble type of a galaxy, SBc, the "B" denotes what?
A.) Tightly wound spiral arms. B.) The presence of a bar. C.) The presence of a ring. D.) A large bulge component. E.) Loosely wound spiral arms.
What two unusual processes does Ganymede experience and why?
What will be an ideal response?
Radioactive Decay: The decay constant of a radioactive nuclide is 4.6 × 10-3 s-1. What is the half-life of this isotope, in minutes?
A. 2.5 min B. 3.6 min C. 3.1 min D. 1.4 min E. 2.0 min