A star's apparent magnitude is a measure of how bright it appears to us if it is at its actual distance
a. True
b. False
Indicate whether the statement is true or false
True
Physics & Space Science
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Why is the Kuiper belt flat but the Oort cloud spherical?
What will be an ideal response?
Physics & Space Science
Which of the following values are associated with the electron spin quantum number, ms?
A) ±1/2 B) 0 C) ±1 D) ±2 E) ±3
Physics & Space Science
A wheel rotates about a fixed axis with an initial angular velocity of 20 rad/s. During a 5.0-s interval the angular velocity increases to 40 rad/s. Assume that the angular acceleration was constant during the 5.0-s interval. How many revolutions does the wheel turn through during the 5.0-s interval?
a. 20 rev b. 24 rev c. 32 rev d. 28 rev e. 39 rev
Physics & Space Science
Of all the terrestrial planets, ________ has the highest surface barometric pressure.
A. Mercury B. Mars C. Venus D. Earth
Physics & Space Science