The helium flash requires a core temperature of ________ K to create carbon
Fill in the blank(s) with correct word
100 million
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When two galaxies collide, they pass through each other and their stars almost never collide
a. True b. False Indicate whether the statement is true or false
If there is a net torque on a wheel, then
A. the wheel cannot be spinning. B. the angular momentum of the wheel cannot change direction. C. there must be a net force on the wheel. D. the wheel must have a nonzero angular acceleration.
Area on a PV diagram has units associated with
a. energy. b. momentum. c. temperature. d. change in temperature.
A light bulb is connected to a 12-V battery. Because light bulbs are non-Ohmic, the resistance of the bulb is not constant, but increases as the bulb gets hotter. As the bulb heats up, which value remains unchanged? a. The power consumed by the bulb. b. The current through the bulb
c. The voltage across the bulb. d. All the above change.