Which object forms when a supergiant explodes? a red giant a black hole a white dwarf a neutron star

8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )

Which situation will have the highest resistance? a. long wire and high temperatureb. short wire and high temperaturec. long wire and cold temperaturedshort wire and low temperature

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87