What is the difference between a planetary nebula and a supernova remnant?
What will be an ideal response?
A planetary nebula is the result of an aging giant star expelling its outer atmosphere in repeated surges to form an object composed of ionized gas. A supernova remnant is the nebular remains of a supernova explosion.
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Time Dilation: A muon at rest decays in 2.2 ?s. Moving at 99.00% the speed of light, it would be seen to "live" for how long?
Fill in the blank(s) with the appropriate word(s).
The root-mean-square speed (thermal speed) of the molecules of a gas is 200 m/s at a temperature 23.0°C. What is the mass of the individual molecules? The Boltzmann constant is 1.38 × 10-23 J/K
A) 2.13 × 10-25 kg B) 2.45 × 10-25 kg C) 5.66 × 10-25 kg D) 1.78 × 10-25 kg E) 3.11 × 10-25 kg
Which of the following properties can be used to measure temperature?
a. the color of a glowing object b. the length of a solid c. the volume of gas held at constant pressure d. all of the above
As you found in Part A, early Mars had both core convection and a strong magnetosphere. What is the connection between these two things?
a. Both core convection and a magnetosphere can exist only a very young planet. b. Core convection creates volcanism and outgassing, the gas creates the magnetosphere. c. Core convection helps generate a magnetic field, and the magnetic field creates the magnetosphere. d. Both core convection and a magnetosphere are consequences of a strong greenhouse effect.