Why does the term "planet" have a different meaning when applied to brown dwarfs than in our solar system?
What will be an ideal response?
In our solar system, a planet is a large body in orbit about only the Sun. If a collapsed body is less than 12 Jupiter masses, it is termed a planet, even if it forms on its own, independent of any star; we have found these in the Orion Nebula.
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A 25.0 cm long organ pipe is filled with air and is open at one end and closed at the other. The velocity of sound in air at 0
is 331 m/s. What is the frequency of the fifth mode?
A. 1,550 Hz B. 1,750 Hz C. 2,320 Hz D. 2,720 Hz E. 3,170 Hz
Define the velocity, wavelength, and frequency of a wave and give an example of each. Use symbol notation in the definitions
A particle starts from rest at xi = 0 and moves for 10 s with an acceleration of +2.0 cm/s2 . For the next 20 s, the acceleration of the particle is -1.0 cm/s2 . What is the position of the particle at the end of this motion?
a. zero b. +3.0 m c. -1.0 m d. +2.0 m e. -3.0 m
Determine the Fourier coefficient, An , for the problem resulting in a temperature
