Deuterium and lithium-7 are part of the 4.5% normal matter
a. True
b. False
Indicate whether the statement is true or false
True
RATIONALE: Ordinary matter is baryonic matter.
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Kirchhoff's Rules: For the circuit shown in the figure, write the Kirchhoff loop equation for the entire outside loop. Notice the directions of the currents!
What will be an ideal response?
From laboratory measurements, we know that a particular spectral line formed by hydrogen appears at a wavelength of 121.6 nanometers (nm). The spectrum of a particular star shows the same hydrogen line appearing at a wavelength of 121.8 nm. What can we conclude?
A) The star is moving toward us. B) The star is moving away from us. C) The star is getting hotter. D) The star is getting colder. E) The "star" actually is a planet.
Consider the following statement, and explain whether or not it is sensible: If you lived on the Moon, you'd see full Earth when we see new Moon
What will be an ideal response?
The dimmest part of sunlight is
A) red. B) yellow. C) yellow-green. D) green. E) violet.