When material expanding away from a star in a binary system leaves a star’s Roche lobe,
a. the material will start to fall back toward the star.
b. all of the material will accrete on to the companion.
c. the material is no longer gravitationally bound to that star.
d. the material will increase in temperature an eventually undergo thermonuclear fusion.
e. c and d.
Answer: c. the material is no longer gravitationally bound to that star.
You might also like to view...
A ventilation fan has blades 0.25 m long rotating at 20 rpm. What is the centripetal acceleration of a point on the outer tip of a blade?
a. 1.1 m/s2 b. 0.87 m/s2 c. 0.55 m/s2 d. 0.23 m/s2
The Earth's layer with plastic-like behavior is the
A) mantle. B) crust. C) inner core. D) outer core.
In the figure, the radius of curvature of the curved part of the lens is 24.0 cm, and the refractive index of the lens material is 1.750. What is the focal length of the lens?
A) +32.0 cm B) -32.0 cm C) -16.0 cm D) +13.8 cm E) -13.8 cm
Because they all involve formation of iron in cores of massive stars, all type II supernovae are equally luminous
Indicate whether the statement is true or false