Condensation in the solar nebula probably led to the formation of
a. icy grains beyond the present orbit of Jupiter.
b. metallic grains near the present orbit of Mercury.
c. silicate grains near the present orbit of Earth.
d. all of the above
e. none of the above
D
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For a comparison of in-line to staggered tube banks for a heat exchanger, determine a relationship when a staggered tube arrangement will have a maximum Reynold’s number between adjacent staggered columns as compared to between two tubes in line.
What will be an ideal response?
Gauss's Law: Gaussian surfaces A and B enclose the same positive charge +Q. The area of Gaussian surface A is three times larger than that of Gaussian surface B. The electric flux through Gaussian surface A is
A. nine times larger than the flux of electric field through Gaussian surface B. B. three times larger than the flux of electric field through Gaussian surface B. C. equal to the flux of electric field through Gaussian surface B. D. three times smaller than the flux of electric field through Gaussian surface B. E. unrelated to the flux of electric field through Gaussian surface B.
How will high tides differ from their average values when the Moon and the Sun are on opposite sides of Earth?
A. They will be higher than average. B. They will be lower than average. C. They will not differ from average values significantly. D. There are no high tides when the Moon and Sun pull in opposite directions.
A practical application of the wave nature of electrons is the
A) message chair. B) electron microscope. C) hologram. D) scanning tunneling microscope.