PHSCS 105 Midterm: BYU PHY 105 exam 3 - Fall 2008
Document Summary
One 3 5 handwritten note card permitted (both sides). Mass of sun = 1. 991 1030 kg. Mass of earth = 5. 98 1024 kg. Radius of earth = 6. 38 106 m. Radius of earth"s orbit = 1. 496 1011 m. Keep four significant digits throughout your calculations; do not round up to less than four. When data is given, assume it has at least four significant digits. You are strongly encouraged to write your work on the exam pages and circle the correct answer. Of course also record your final answers on the bubble sheet. You won"t get your exam back without writing your cid. In a collision between two objects with no outside forces, the total momentum of the system is conserved: always, only when the collision is elastic. In class, a student in the rotating chair was rotating with his arms extended, holding weights. Then, he brought his arms closer towards his body and rotated faster.
