The Schwarzschild radius of a 1 black hole is approximately
a. 3 km.
b. 1,500,000 km, the size of the Sun
c. 150,000,000 km or 1 AU.
d. 3 x 1013 km or 1 pc.
A
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In degenerate matter
a. pressure depends only on the temperature. b. temperature depends only on density. c. pressure does not depend on temperature. d. pressure does not depend on density. e. b and c
Cell phone signals passing through walls is an example of
A) emission. B) reflection or scattering. C) absorption. D) transmission.
The white zones of Jupiter and Saturn are made of ________ ice, apparently dissolved in the deep oceans of Uranus and Neptune
Fill in the blank(s) with correct word
A current-carrying ohmic metal wire has a cross-sectional area that gradually becomes smaller from one end of the wire to the other. The current has the same value for each section of the wire, so charge does not accumulate at any one point. How does the resistance per unit length vary along the wire as the area becomes smaller?
1.It increases. 2.It decreases. 3.It remains constant.