PHSCS 105 Midterm: BYU PHY 105 exam 3 - Fall 2007 - solutions
Document Summary
One 3 5 handwritten note card permitted (both sides). Mass of earth = 5. 98 1024 kg. Radius of earth = 6. 38 106 m. Radius of earth"s orbit = 1. 496 1011 m g = 9. 80 m/s2. Mass of sun = 1. 991 1030 kg. 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 write your answers into the answer blanks (but of course also record your final answers on the bubble sheet). You won"t get your exam back without writing your cid. An astronaut floating in orbit shakes a mass rapidly back and forth. ]________ m/s: less than 6744 m/s, 6744 7069, 7069 7394, 7394 7719, 7719 8044, more than 8044 m/s. = sqrt(6. 67 10 -11 n. m2/kg2 * 5. 98 1024 kg /(6. 38e6 + 3. 00e6)m ) = 6520 m/s.
