The x-rays that occur when a high energy electron beam is incident on a metal target will show what type of spectrum?
a. continuous
b. line
c. continuous spectrum superimposed with a line spectrum
d. absorption
c
Physics & Space Science
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By the time the Universe was about two minutes old, protons and neutrons could link to form _____, the nucleus of a heavy hydrogen atom, and not be broken apart again
A) uranium B) helium C) nitrogen D) deuterium
Physics & Space Science
Mars has larger volcanoes than Earth's Hawaii
Indicate whether the statement is true or false
Physics & Space Science
London smog has a deserved reputation as a killer—the smog killed thousands of people
What will be an ideal response?
Physics & Space Science
At the end of December, all of the Southern Hemisphere is in
A) darkness. B) light. C) summer. D) winter.
Physics & Space Science