Which of the terrestrial planets has the most difficult time retaining an atmosphere?
a. Mercury
b. Venus
c. Earth
d. Mars
A
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You have three dice and you roll them simultaneously. What is the chance that all three dice will end up with the same value?
1.1/6 2.3/6 3.1/36 4.1/216
Some large clusters of galaxies do not appear to contain enough mass to hold themselves together
Indicate whether the statement is true or false
To find the equivalent resistance of the combination of resistors shown below by the method of possibly repeated applications of combining resistors in series and /or combining resistors in parallel, the first step would be which of the following?
a.
Combine the 6.0 ? and the 7.0 ? in series.
b.
Combine either the 4.0 ? and the 10.0 ? in parallel or the 7.0 ? and the 10.0 ? in parallel first, since either could be the first step with the other the second step.
c.
Combine the 4.0 ? and the 10.0 ? in series.
d.
Combine the 6.0 ?, the 4.0 ?, and the 10.0 ? in series in a single step.
If a light source is approaching you at a speed very close to the speed of light, it will appear:
A) redder than it is. B) bluer than it is. C) brighter than it is. D) fainter than it is. E) lower temperature than it is.