Currently, most of the mass of the matter of the universe is believed to consist of
A) baryonic matter, made up of protons and neutrons.
B) tachyonic matter, travelling only faster than the speed of light.
C) dark matter not made of protons and neutrons.
D) dark energy.
E) tiny but very numerous black holes.
Question 2
What evidence from the careful examination of impact craters provides evidence that Mars had surface water long ago?
A) indistinct rims of many large craters due to water erosion
B) lack of small craters which would have been erased by ancient rainfall
C) channels where water once flowed between crater lakes
D) all of these
Mass Exchange Between Close Binary Stars
Interactions of Light and Matter
Mass spectrometry (MS) for Mass, Sequence, and Amino Acid Analyses of Purified Proteins
Mass Wasting Triggers
For toluene (shown below), you would expect to see which m/z fragment in the mass spectrum?
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...