Granulation is caused by rising currents of hot gas below the photosphere
a. True
b. False
Indicate whether the statement is true or false
True
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Consider a situation where two moving objects collide, stick to each other, and move off together. For a body oscillating at the end of a spring, the energy is only elastic potential energy
Indicate whether the statement is true or false
A _____ is a group of stars that formed together and orbit a common center of mass
A) stellar association B) star cluster C) T Tauri star D) brown dwarf
A guitar string 0.650 m long has a tension of 61.0 N and a mass per unit length of 3.00 g/m
(a) What is the speed of waves on the string when it is plucked? (b) What is the string's fundamental frequency of vibration when plucked?
What is the unified model of active galactic nuclei? How does it explain differences in the continuous spectrum and emission lines of an active galactic nucleus?
What will be an ideal response?