Another name for a pulsar is ______________
Fill in the blank(s) with correct word
neutron star
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When potassium and sulfur react to form potassium sulfide, an ionic compound,
a. each sulfur atom loses two electrons. b. each sulfur atom loses one electron. c. each potassium atom loses one electron. d. each potassium atom loses two electrons.
The proton-proton chain is ________
A) another name for the force that holds protons together in atomic nuclei B) the linkage of numerous protons into long chains C) the specific set of nuclear reactions through which the Sun fuses hydrogen into helium D) an alternative way of generating energy that is different from the fusion of hydrogen into helium
In light of what we know about geological activity on the terrestrial worlds, why might it seem surprising to find geological activity on jovian moons?
a. because some of them have orbital resonances with other moons b. because they rotate slowly c. because they are relatively small in size d. because they are moons, not planets e. because they are far from the Sun
Magnetic blood flow meters function using which of the following?
a. magnetic relays c. a Hall-effect type arrangement b. magnetic bacteria d. radioactive decay