Since Mars is 1.5 AU from the Sun, how long would it take for sunlight to reach the surface of Mars?
a. 4 min
b. 8 min
c. 12 min
d. 1 hr
e. 4 hr
c
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The complete cycle of lunar phases takes 29.53 days, also known as the Moon's ____________________ period
Fill in the blank(s) with correct word
An image of the American flag cast by a simple lens finds red and blue colors at slightly different distances from the lens. The color closest to the lens is
A) red. B) blue. C) both at the same place
A uniform, horizontal beam of length 8.0 m and weight 42.4 N is attached at one end to a wall by a pin connection (so that it may rotate). A cable attached to the wall above the pin supports the opposite end. The cable makes an angle of 60.0° with the horizontal. What is the tension in the cable needed to maintain the beam in equilibrium?
a. 24.5 N b. 49.0 N c. 294 N d. 4.59 N e. 171 N
The major credit for the development of the periodic table goes to a scientist named ______________
Fill in the blank(s) with correct word