Almost all elements heavier than hydrogen and helium were made inside stars
Indicate whether the statement is true or false
TRUE
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A night vision camera
A. can only detect green photons, which reflect well in the dark, but which our eyes have trouble seeing. B. is just much more sensitive to visible light than your eyes. C. uses a detector sensitive to X-ray light, so you can see through the dark. D. uses a detector sensitive to infrared light, so you can see objects that are warmer than their surroundings.
To weaken a bar magnet
A) drop it on a hard surface. B) put it in hot flames. C) whack it with a hammer. D) all of the above E) none of the above
S seismic waves can travel only through ______________ material
Fill in the blank(s) with correct word
Which of these did Rutherford's "solar system" model of the atom successfully explain?
a. Spectral lines. b. The periodic properties of the elements. c. How atoms could give off light without collapsing. d. Why some alpha particles would bounce back when hitting an atom. e. Absorption spectra.