Bell Work
1. Astronauts in the international Space Station appear to be weightless as they float. Calculate the acceleration to gravity and the weight of a 75 kg astronaut in the ISS. Earth's mass is 6.0x10^24 kg and the radius is 6.4 x 10^6 m. The ISS is 350 km above the earth's surface. How does their weight on the ISS compare to their weight on earth? Why the heck are they "weightless" if they are supposed to weight almost the same as on earth? 2. Go over homework problems Lesson Discussion about Orbital Motion 1. Calculating the velocity of orbital motion .
Homework Homework: Practice Problems MC
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