A space expedition discovers a planetary system consisting of a massive star and several spherical planets. The planets all have the same uniform mass density. The orbit of each planet is circular.
In the observed planetary system, Planet A orbits the central star at the distance of 2R and takes T hours to complete one revolution around the star. Planet B orbits the central star at the distance of R. Which of the following expressions is correct for the number of hours it takes Planet B to complete one revolution around the star?
a. 1/â8T
b. 1/2T
c. 1/3â4T
d. 2T
e. â8T
Answers: 1
Another question on Physics
Physics, 21.06.2019 14:30
:( asap! list all of the items in the item bank and match the definitions correctly.
Answers: 2
Physics, 21.06.2019 23:30
Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
Answers: 3
Physics, 22.06.2019 05:20
Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem
Answers: 2
Physics, 22.06.2019 05:30
Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine
Answers: 1
You know the right answer?
A space expedition discovers a planetary system consisting of a massive star and several spherical p...
Questions
Chemistry, 07.12.2019 15:31
Mathematics, 07.12.2019 15:31
Social Studies, 07.12.2019 15:31
Geography, 07.12.2019 15:31
Mathematics, 07.12.2019 15:31
Mathematics, 07.12.2019 15:31
Mathematics, 07.12.2019 15:31
History, 07.12.2019 15:31
