Planet A has an orbit with a semi-major axis of 3 Astronomical Units. Planet B hasan orbit with a semi-major axis of 12 Astronomical Units. How does the orbital periodcompare between the two planets? Use P squared = a cubed to estimate.
a) Planet B has an orbital period 64 times longer than Planet A.
b) Planet B has an orbital period 4 times shorter than Planet A.
c) Planet B has an orbital period 4 times longer than Planet A.
d) Planet B has an orbital period 8 times longer than Planet A.
e) Planet B has an orbital period 64 times shorter than Planet A.
Ans: d) Planet B has an orbital period 8 times longer than Planet A.
You might also like to view...
Three point charges, two positive and one negative, each having a magnitude of 20 ?C are placed at the vertices of an equilateral triangle (30 cm on a side). What is the magnitude of the electrostatic force on one of the positive charges?
a. 69 N b. 40 N c. 80 N d. 57 N e. 20 N
Which of the following is an important starting assumption in models of galaxy formation?
A) Some regions in the universe start out denser than others. B) Galaxies form first, then black holes. C) All galaxies start out as spiral galaxies. D) Black holes form first, seeding the formation of galaxies.
A heat engine has an efficiency of 35.0% and receives 150 J of heat per cycle. How much work does it do in each cycle?
General relativity explains gravity as the ________ of spacetime
Fill in the blank(s) with correct word