Stars in the Galactic disk came billions of years before stars in the Galactic halo
Indicate whether the statement is true or false
FALSE
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What is the source of Jupiter's intense magnetic field?
A) Charged particles trapped in Jupiter's solid iron core similar to Earth B) Liquid metallic hydrogen swirling in the rapidly spinning mantle C) The ionized sulfur ejected into a torus around Jupiter by Io D) The auroral displays in the polar regions, just like with the Earth E) A liquid iron and nickel outer core, just like the Earth's magnetic field
Capacitance is o A/d for
A) all capacitors. B) parallel wires. C) parallel plates. D) concentric cylinders.
A sample of gas has its number of molecules quadrupled, its Kelvin temperature doubled, and its volume tripled. By what factor has the new pressure changed relative to the original pressure?
a. 2.7 b. 1.7 c. 24.3 d. 24
A balloon originally has a volume of 1.0 m3 when the gas in it is at 20°C and under a pressure of 1.0 atm. As it rises in the earth's atmosphere, its volume expands
What will be its new volume if its final temperature and pressure are -40°C and 0.10 atm? A) 8.0 m3 B) 6.0 m3 C) 4.0 m3 D) 2.0 m3