How are Organic rocks formed?
What will be an ideal response?
They form from lithification of organic debris
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If you were on the moon during a total lunar eclipse, the sun would be hidden behind Earth
Indicate whether the statement is true or false
____________________ are great lava flows covering 17% of the lunar surface
Fill in the blank(s) with correct word
A spaceship is observed by a stationary observer to be moving at 0.600 c. A laser beam is shown straight ahead from the front of the spaceship. How fast does the laser beam travel relative to the observer?
A. 1.60 c B. 1.36 c C. 1.00 c D. 0.640 c E. 0.360 c
Identical point charges (+50 ?C) are placed at the corners of a square with sides of 2.0-m length. How much external energy is required to bring a fifth identical charge from infinity to the geometric center of the square?
a. 41 J b. 16 J c. 64 J d. 10 J e. 80 J