Astronomers can determine the mass of the Sun by applying Newton's modification of Kepler's Third law.
Answer the following statement true (T) or false (F)
True
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Carnot Engine: An ideal Carnot engine operating between a warm reservoir of unknown temperature and a cold reservoir at 1.76 K has an efficiency of 11.0%. What is the temperature of the warm reservoir?
A. 1.98 K B. 0.180 K C. 157 K D. 0.160 K
A projectile is launched with velocity v at an angle ? above the horizontal. The range of the projectile does not depend upon the acceleration due to gravity at that location
Indicate whether the statement is true or false
About how many times more luminous than our Sun is a young solar mass protostar just beginning convective contraction?
A) 2-5 B) 5-10 C) 10-100 D) 100-1000 E) a million
Which statement about seismic waves is FALSE?
A) Both S and P waves can be detected by seismographs. B) Close to the epicenter, both S and P waves can be recorded. C) P waves travel faster, so the gap between their arrival times gives the source's distance. D) Only P waves can be detected in the shadow zone. E) S waves are blocked by the fluid outer core and cannot be observed on the other side of the planet from the epicenter.