_____ is the rich solution of organic molecules in Earth's first oceans
A) Organelle soup
B) Nuclear soup
C) Plasma soup
D) Primordial soup
D
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Fluid Flow: Ideal incompressible fluid flows through a 4.0-cm-diameter pipe at 1.0 m/s. There is a 2.0 cm diameter constriction in the line. What is the speed of the fluid in this constriction?
A. 0.25 m/s B. 0.50 m/s C. 2.0 m/s D. 4.0 m/s
A 100 kg mass is blown apart into a 90.0 kg piece and a 10.0 kg piece. After the blast, the two masses are moving apart with a relative velocity of 100 m/s. The velocity of the 10.0 kg mass after the explosion is 90.0 m/s. The total kinetic energy of the two masses after the explosion is
A. 63,200 J. B. 45,000 J. C. 30,400 J. D. 23,400 J. E. 4,500 J.
Unlike supernovae, novae can explode more than once, increasing their luminosity by thousands of times
Indicate whether the statement is true or false
The famed meteorite with carbonate rocks and possible microfossils came from:
A) Venus. B) the Moon. C) Mars. D) Europa. E) Comet Halley.