Suppose a star has twice the surface temperature of the sun and also twice the radius. How many times larger is the rate at which this star emits energy compared to the rate at which the sun emits energy?
A. It radiates at the same rate as the sun.
B. 2 times
C. 4 times
D. 8 times
E. 16 times
F. 32 times
T. 64 times
T. 64 times
You might also like to view...
As the temperature of a blackbody increases, the peak of its radiation curve moves
a. upward toward higher intensity b. downward toward lower intensity c. toward larger wavelength d. toward smaller wavelength e. none of the above
The most important geological process occurring on Mars today is
A) water erosion B) plate tectonics C) volcanism D) wind erosion
When 0.50 kg of water at 0°C freezes, what is the change in entropy of the water? The latent heat of fusion of water is 33,400 J/kg
A) 0 J/K B) -17,000 J/K C) -610 J/K D) 17,000 J/K E) 610 J/K
Which of the following did Alfred Wegener not use to support his theory of continental drift?
A) paleoclimate data B) similar fossils on widely separated continents C) paleomagnetic data D) similar rocks on widely separated continents