What happens to the core of a star after the planetary nebula stage?
it becomes a white drawf
You might also like to view...
Terminal Voltage and Internal Resistance: A heating element having a resistance (at its operating temperature) of 148 ? is connected to a battery having an emf of 523 V and unknown internal resistance.It is found that heat energy is being generated in the resistance of the heating element at a rate of 66.0 W. What is the rate at which heat energy is being generated in the internal resistance of the battery?
Fill in the blank(s) with the appropriate word(s).
A proton (m = 1.7 × 10?27 kg, q = +1.6 × 10?19 C) starts from rest at point A and has a speed of 40 km/s at point B. Only electric forces act on it during this motion. Determine the electric potential difference VB?VA.
A. +8.5 V B. ?8.5 V C. ?4.8 V D. +4.8 V E. ?17 V
An automobile travels due north with a constant speed of 81 km/h. All forces considered, the unbalanced force acting on the auto is
a. zero. b. southward. c. northward. d. downward. e. upward.
What is Boyle's law?
a. Gas temperature is a constant. b. Gas pressure is a constant. c. The product of gas volume and gas pressure is a constant. d. The product of gas temperature and gas pressure is a constant. e. The sum of gas temperature and gas pressure is a constant.