homework1 - Name _ Astronomy 161 Solar System Astronomy...

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Name _________________________ Astronomy 161 –Solar System Astronomy Winter Quarter 2008 – Prof. Martini Homework #1 Due Friday, January 11 in class Instructions Answer the following five questions by circling the correct answer. Each question has equal weight. No late homework will be accepted. 1. The Mars rover Spirit has been operating on the surface of Mars for over four years. Its mass was determined on the Earth to be 180kg. The strength of gravity on Mars is 0.38 times the strength of gravity at the surface of the Earth. What are the mass and weight of Spirit on the surface of Mars? a) 64.4kg, 150.5 pounds b) 64.4kg, 396.0 pounds c) 180kg, 64.40 pounds d) 180kg, 150.5 pounds e) 180kg, 396.0 pounds 2. Aliens abduct you and dump you on a small island somewhere on Earth. After a few days, you notice that there are no circumpolar stars and the next day the Sun is directly overhead at noon. Where are you?
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This note was uploaded on 07/17/2008 for the course ASTRO 161 taught by Professor Martini during the Winter '08 term at Ohio State.

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homework1 - Name _ Astronomy 161 Solar System Astronomy...

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