# Project #22547 - earth science 1121 homework 1

1. In a paper published in Science by Furlong et al., (2009, 324, p. 226) they report the plate movements that were responsible for the magnitude 8.1 earthquake that occurred in 2008 in the Solomon Islands.   Please refer to the figure below.

The gray line on the left side of the double red arrows show the position of the Australia plate 500,000 years ago, while the black line on the right side of the double red arrows shows its present position.  Assuming that 1o of longitude is ~ 111 km long how fast is the Australia plate moving away (in mm/year) from the Solomon Sea Woodlark plate?  Does your calculated value compare well with the reported value in the inset box?  You need a ruler for this problem.

2. You received a meteorite with a density of 3.24 grams/ml that weighs 120 grams.  If you place this sample in a graduated cylinder initially filled with 100 ml of water what would the final volume be in ml?

3. Titan, a moon of Saturn is believed to have oceans of liquid methane.  Suppose a probe in the future discovers “icebergs” of an unknown composition floating in this liquid methane.  If 22% of the “iceberg” is above the surface of the liquid methane and the density of the material is 0.365 grams/ml what is the density of liquid methane?

*I will upload the image after the submission.

 Subject Science Due By (Pacific Time) 02/10/2014 09:00 pm
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