The diameter of the average atom is about ______________ m
Fill in the blank(s) with correct word
2.55 × 10^–19 J
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Sunspots are hotter than the photosphere
Indicate whether the statement is true or false
Weakly interacting particles (WIMPs) interact with other particles using gravity and the weak nuclear force. They cannot emit or absorb light. Therefore, how does the behavior of hydrogen and helium gas differ from that of WIMPs?
A) Hydrogen and helium gas affects particles that we can see. B) Hydrogen and helium gas interacts with other forms of matter gravitationally. C) Hydrogen and helium gas can cool by radiating energy.
The energy of a particle in the second EXCITED state of a harmonic oscillator potential is 5.45 eV. What is the classical angular frequency of oscillation of this particle?
(1 eV = 1.60 × 10-19 J, h = 1.055 × 10-34 J ? s, h = 6.626 × 10-34 J ? s) A) 3.31 × 1015 rad/s B) 2.08 × 1016 rad/s C) 4.97 × 1015 rad/s D) 6.95 × 1015 rad/s
Process of Science: What evidence is there of a subsurface ocean on Europa? Do you find it compelling?
What will be an ideal response?