Most neutron stars are the remnants of _____ explosions
a. type II supernovae
b. type Ib supernovae
c. type Ia supernovae
d. novae
e. planetary nebulae
a
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The Polynesian navigators of the South Pacific found their way primarily by observing the position of Polaris in the night sky
Indicate whether the statement is true or false
George Gamow, the creator of the Big-Bang theory of the origin of the universe, asks you to imagine what would happen if the speed of light was 15. mi/h
If you were on the sidewalk looking at a bicyclist ride down the street, how does she look to you while riding, compared to when she stops? A) taller, the same mass, but stretched out like a limousine B) shorter, the same mass, but stretched out like a limousine C) same height, greater mass, and flatter in the direction she is moving D) same height, smaller mass, and flatter in the direction she is moving E) shorter, greater mass, but stretched out like a limousine
The distortion of the FCC unit cell to a tetragonal unit cell after quenching a carbon steel from 800°C to room temperature is the _____________distortion.
Fill in the blank(s) with the appropriate word(s).
A certain ideal gas has a molar specific heat at constant volume 7R/2. What is its molar specific heat at constant pressure?
A) 5R/2 B) 3R/2 C) 8R D) 9R/2 E) 6R