Relate escape velocity to the event horizon
What will be an ideal response?
At the event horizon around a black hole, the escape velocity is equal to the speed of light, so that no matter or energy can escape from inside.
You might also like to view...
A(n) ____________________ is used to measure the brightness and color of stars
Fill in the blank(s) with correct word
Compared to the summer, the atmospheric pressure above a Martian polar cap in winter is
A) lower B) about the same C) slightly higher D) much higher
Two loops of wire are arranged so that a changing current in one, the primary, will induce a current in the other, the secondary. The secondary loop has twice as many turns as the primary loop. As long as the current in the primary is steady at 6 A, the current in the secondary will be:
a. 3 A. c. 6 A. b. 1.5 A. d. zero.
A ?+ particle, composed of uus quarks, has the same ____ as a proton
a. baryon number and charm. b. baryon number and electric charge. c. baryon number and strangeness. d. baryon number, electric charge, and charm. e. electric charge and strangeness.