Unlike supernovae, novae can explode more than once, increasing their luminosity by thousands of times
Indicate whether the statement is true or false
TRUE
You might also like to view...
Which of the following is a true "wave" as the word is defined in physics?
A) ripples on the surface of a pond, extending outward from a pebble dropped in the water B) a row of falling dominoes, in which each domino knocks over its neighbor as it falls C) Both of the above. D) a large water wave coming into the beach, one that surfers can ride on E) All of the above.
Pressure in a Liquid: What force does the water exert (in addition to that due to atmospheric pressure) on a submarine window of radius 44.0 cm at a depth of 9400 m in sea water? The density of sea water is 1025 kg/m3.
A.
| 5.74 × 107 N |
B. 5.74 × 1011 N
C. 2.87 × 1011 N
D. 1.83 × 107 N
E. 2.87 × 107 N
More than 2000 years ago, Hipparchus compared the positions of some stars with their positions recorded nearly two centuries previously and realized that:
A) the celestial poles and equator remained stationery. B) the celestial poles and equator were slowly moving across the sky. C) the stars were moving closer to each other. D) the stars were moving across the sky randomly.
For an object in static equilibrium
A. The net torque about any point is zero B. None of these are true. C. The net torque about every point is different D. The net torque about every point is a nonzero constant