Monday, October 14, 2013

HMWK, bonus problem

Exam re-take tomorrow after school!  Bring your equation card!

HMWK for Wed:  Read 98-103, p. 103#1-7

Bonus problem:  Bring to class tomorrow for maximum of +8 bonus points.  Show work!
ISS altitude: 230 miles
1.61 km = 1 mile
The Earth’s radius is about 6370 km.
The Earth’s mass is 5.97•1024 kg
An average person has a mass of 60kg.  (our astronaut)
Use the Fg equation to find the force due to gravity (their weight) on an astronaut:
a.At the Earth’s surface

b.On the International Space Station

(you can check your answer to (a) by taking W = m*g (from your notes))
Feel free to check your answer to (b) on the Internet.  

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