You see a lightning flash and half a second later hear a loud blast of thunder. How far away did the lightning hit?
a. about a mile c. a tenth of a mile
b. half a mile d. none of the above
C
Physics & Space Science
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Which of the other terrestrial planets is closest in size to Earth?
A. Venus B. Mars C. the Moon D. Mercury
Physics & Space Science
Briefly describe the phenomena of the sunspot cycle
What will be an ideal response?
Physics & Space Science
According to Einstein's theory of general relativity, a ray of light bends in an accelerated frame of reference
Indicate whether the statement is true or false
Physics & Space Science
What is the formula of a compound formed from the ions M3+ and X1-?
a. M3X b. MX c. M2X3 d. MX3
Physics & Space Science