The first molecules of RNA were probably made
A) on the surfaces of clays or other minerals
B) deep within the earth
C) in the atmosphere
D) in space and then transported to the Earth in meteorites
A
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Graphical Interpretation of Work: A force acts on an object, causing it to move parallel to the force. The graph in the figure shows this force as a function of the position of the object. How much work does the force do as the object moves from 0 m to 4 m?
A. 20 J B. 30 J C. 0 J D. 40 J E. 70 J
If it takes 50 J of energy to move 10 C of charge from point A to point B, what is the magnitude of the potential difference between points A and B?
A) 500 V B) 5.0 V C) 50 V D) 0.50 V
The troposphere derives energy by means of
a. latent heat of condensation only. b. absorption of terrestrial radiation only. c. conduction from Earth's surface only. d. all of these.
What are the restrictions on Stefan’s law?
What will be an ideal response?