Aspacecraft is in orbit around mars. suppose that it was previously observed to have speed 5 km/sec while at a distance r = 5000 km from planet center. suppose it is now at a distance r = 6000 km from planet center. what speed would you expect it to be traveling at now? note that for mars we have gmmars = µmars ' 42, 828 km3 /sec2

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.