Do you think it is possible that a 1.5-solar-mass red giant could harbor an advanced civilization? Explain your reasoning
What will be an ideal response?
A 1.5-solar-mass red giant is a temporary stage of life for a low-mass star. If an advanced civilization had already developed around this star, which is possible, then it may have had the resources to respond to its expanding, cooling, and brightening star.
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Simple Harmonic Motion: A guitar string is set into vibration with a frequency of 512 Hz. How many oscillations does it undergo each minute?
A. 30,700 B. 8.53 C. 26.8 D. 1610 E. 512
The reason that evaporation is a cooling process is
A) radiation of heat during the process. B) due to conduction and convection. C) the more energetic molecules escape the liquid. D) all of the above E) none of the above
Refer to the graph. The object moves forward
A. in region A. B. in region B. C. in regions A and C. D. The object always moves forward E. The object never moves forward
The Q of a nuclear reaction is equal to:
a. the total charge involved. b. energy associated with the change in mass. c. energy associated with momentum conservation. d. the exothermic endothermy.