29:52 Homework Set #3
Assigned: October 19, 2001
Due: October 26, 2001
Confused? Don’t go around miserable and despondent! Ask
for help and explanation from me. Even better, work on these problems with one
or two of your classmates.
- The
Imbrium basin on the moon is about 700 kilometers in diameter. Approximately how large was the
impacting object that produced this impact basin.
- Look
at the image of Miranda at the following URL: http://www.solarviews.com/cap/uranus/miranda4.htm
. In about a paragraph, discuss
what we can say about its geology and geological history.
- Pick
an example of a Valley Network channel, or an Outflow channel on Mars, and
compare it to rivers on Earth (Mississippi, Amazon, Makquoketa). For this problem, you have to come up
with some material and carry out an analysis. Hint: Internet
connections in the lecture notes are one way (although not necessarily the
best resource) to attack this problem.
- The
solar elongation of Venus is currently 25 degrees. The solar elongation is the angle we
measure between the Sun and Venus.
How far is it from the Earth?
Consider both orbits, that of the Earth and that of Venus, to be
circles. You may use geometric
instruments and measure the answer.
Hint: there will be two possible solutions. Venus is presently at the more distant
of the two possible solutions.
- In
class I said that Aphrodite and Ishtar on Venus were comparable to
continents on Earth. Form an
argument, using data on Venus, which would support or refute this
statement. Hint: internet links given in the lecture
notes could help in answering this.