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
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Of all the terrestrial planets, ________ has the highest surface barometric pressure.
A. Mercury B. Mars C. Venus D. Earth
Why is the Kuiper belt flat but the Oort cloud spherical?
What will be an ideal response?
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
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