A solar mass star will evolve off the main sequence when
A) it completely runs out of hydrogen.
B) it expels a planetary nebula to cool off and release radiation.
C) it explodes as a violent nova.
D) it builds up a core of inert helium.
E) it loses all its neutrinos, so fusion must cease.
D
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The velocity required to escape an astronomical body is known as the _______________
Fill in the blank(s) with correct word
Wave Characteristics: The distance between two asteroids is 1600 km. How much time does it take for a light signal to go from one asteroid to the other? (c = 3.0 × 108 m/s)
A. 19 ms B. 4.5 ms C. 5.3 ms D. 13 ms E. 19 µs
The resonance frequency of an RLC circuit is the frequency at which the circuit dissipates minimum power
Indicate whether the statement is true or false
A flashlight bulb operating at a voltage of 5.0 V has a resistance of 7.0 ?. How many electrons pass through the bulb filament per second (e = 1.6 × 10^?19 C)?
a. 1.1E+16 b. 5.6E+21 c. 2.2E+17 d. 4.5E+18 e. 8.8E+19