About how much brighter is a typical star than the light reflected by a planet orbiting around it?
A) a hundred times brighter
B) a thousand times brighter
C) ten thousand times brighter
D) a million times brighter
E) a billion times brighter
E) a billion times brighter
Physics & Space Science
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Reactance: At what frequency will the capacitive reactance of a 0.010-?F capacitor be 100 ??
A. 1.0 kHz B. 16 kHz C. 0.16 MHz D. 0.31 MHz
Physics & Space Science
An object 20-cm high is placed 50.0 cm in front of a lens whose focal length is 5.00 cm. Where will the image be located (in cm)?
a. 5.13 b. 5.56 c. 5.72 d. 5.93 e. 4.55
Physics & Space Science
The figure shows the speedometer readings as a car comes to a stop. Solve graphically for the acceleration at t = 7.0 s.
A. 2.5 
B. - 2.5
C. - 2.0
D. 2.0
Physics & Space Science
________ Paradox asks "Why is the night sky dark?"
Fill in the blank(s) with correct word
Physics & Space Science