If we accelerate a radioactive isotope of an element in a particle accelerator to a speed close to that of light, what would its observed rate of decay be compared to its rate of decay at rest?
A) faster
B) slower
C) infinite
D) zero
B
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Why are there no black dwarfs yet, but in the future they may make up the majority of normal matter in the universe?
What will be an ideal response?
The lowest energy level in an atom is its
a. ionization level. b. emission level. c. absorption level. d. photon level. e. ground state.
Ideal Gas Law: An ideal gas occupies 6.00 × 102 cm3 at 20°C. At what temperature will it occupy 1.20 × 103 cm3 if the pressure is held constant?
A. 10°C B. 40°C C. 100°C D. 313°C
Hot Jupiters are thought to have moved closer to their parent star than where they originated due to:
A) gravitational interactions with the gas disk. B) magnetic attraction to the parent star. C) interactions with another star. D) large impacts. E) many small impacts.