The graph below plots the escape velocity of each planet along the vertical axis and its surface temperature along the horizontal. The lines plotted in the figure are the average speeds of gas particles as a function of temperature for various gases. Which of the planets or satellite plotted in this diagram is least able to hold an atmosphere?
B
Physics & Space Science
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An object moving in a circle undergoes
a. constant acceleration b. free fall c. centripetal acceleration d. linear acceleration e. frequency
Physics & Space Science
Thermal energy can be described as
A) microscopic kinetic energy. B) macroscopic kinetic energy. C) Both of the above. D) None of the above.
Physics & Space Science
The heating of a room by a fire in a fireplace is chiefly due to
a. vaporization. b. radiation. c. convection. d. conduction.
Physics & Space Science
The inductive reactance of a 20-mH inductor at a certain frequency is 120 ?. What is the frequency in rad/s?
A) 2000 rad/s B) 4000 rad/s C) 5000 rad/s D) 6000 rad/s E) 7000 rad/s
Physics & Space Science