Air is denser than water, which has implications for underwater divers
What will be an ideal response?
This is correct. People who dive too deep can be crushed, and many people have
heard of the bends, an affliction caused by the release of nitrogen bubbles into the blood as
the increased pressure is reduced by a rising diver.
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Consider the hypothetical discovery from Part A reading: "Beyond its jovian planets, a star has two ice-rich objects as large as Mars." This discovery is consistent with the nebular theory, because this theory predicts that _________.
a. ice-rich objects the size of terrestrial planets should exist in all solar systems b. terrestrial planets sometimes form beyond the jovian planets c. this might have happened in our own solar system if it had taken longer for the solar wind to clear the solar nebula
A cross section of the magnetic field for a current-carrying wire is shown. The direction of the current is
A. to the left.
B. to the right.
At apogee, the Moon is at its farthest from the Earth and thus appears larger than normal. Because of this, it can produce total solar eclipses, but not annular solar eclipses
Indicate whether the statement is true or false
If the redshift of a quasar were 3, at what wavelength would the 486.1-nm line of hydrogen appear in the quasar's spectrum?
What will be an ideal response?