Red dwarfs (have/have not) yet died or evolved off the main sequence
What will be an ideal response?
have not
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A series of ocean waves, 7.0 m between crests, move past at 4.0 waves/s. Find their speed
a. 1.8 m/s b. 7.0 m/s c. 11.0 m/s d. 28 m/s e. 3.0 m/s
A golf ball moving forward with 1 unit of momentum strikes and bounces backward off a heavy bowling ball that is initially at rest and free to move. The bowling ball is set in motion with a momentum of
A) less than 1 unit. B) more than 1 unit. C) 1 unit. D) not enough information
The cosmic speed limit, the speed of light is established by
A) Newton's Laws of Motion B) Einstein's General Theory of Relativity C) Einstein's Special Theory of Relativity D) Kepler's Laws of Planetary Motion
A brass rod is placed between two temperature sources so that heat can flow between them. One temperature is 80
and the other temperature is 20
The length of the rod is 50.0 cm and the cross sectional area is 15.0 cm2 . If the coefficient of thermal conduction for brass is 100 W/m 
then what is the heat flow between the hot temperature and the cold temperature?
A. 7.5 W B. 8.2 W C. 9.4 W D. 12 W E. 18 W