Inward migration is a hypothesis used to explain why
A) Jupiter-sized planets are seen orbiting close to some stars
B) some stars do not have Jupiter-sized planets
C) some stars do not have planets at all
D) Terrestrial-sized planets are seen orbiting far from some stars
A
You might also like to view...
Derive the stability criterion for the explicit solution of two-dimensional transient conduction.
GIVEN Two-dimensional transient conduction FIND (a) The stability criterion for an explicit solution
Which of the following best describes the origin of ocean tides on Earth?
A) Tides are caused by the difference in the force of gravity exerted by the Moon across the sphere of the Earth. B) The Moon's gravity pulls harder on water than on land because water is less dense than rock. C) Tides are caused by the 23.5-degree tilt of the Earth's rotational axis to the ecliptic plane. D) Tides are caused on the side of the Earth nearest the Moon because the Moon's gravity attracts the water.
For n = 5, how many allowed values are possible for the orbital quantum number and the orbital magnetic quantum number?
a. 5, 11 c. 5, 9 b. 6, 12 d. 4, 9
About how high can water at sea level be theoretically lifted by a vacuum pump?
A) less than 10.3 m B) 10.3 m C) more than 10.3 m