I really need help.
Read this excerpt from "Why Are They Called Black Holes?"
After many...
I really need help.
Read this excerpt from "Why Are They Called Black Holes?"
After many millions or billions of years, the star runs out of hydrogen and energy. Then the star "dies" and collapses into a dense little ball with tons of gravity. Albert Einstein’s theory of relativity predicted that black holes would have to exist if a dead star had enough gravity. Using Einstein's theory, astronomers calculated that if a star more than three times as heavy as our sun died, the force of gravity pulling matter in could overwhelm any other force pushing matter out.
In this excerpt, the author makes a connection between a scientific theory and
the calculations that scientists make.
the beginning of a star's existence.
the idea that all things live and die.
the question of why gravity exists.
Answers: 2
English, 21.06.2019 21:00
4. interpret how do the speaker's descriptions of and feelings about the wind change as the poem progresses? how does this shift show a change in the tone of the poem?
Answers: 1
English, 22.06.2019 04:20
Sometimes the animals arrive at the shelter very sick. however, the shelter workers will not allow anyone to adopt a seriously ill animal. which is the conjunctive adverb? sometimes however anyone at
Answers: 1
English, 22.06.2019 04:30
What does brutus say that anticipates the question of why the crowd should listen to mark antony? o a. not that i lov'd caesar less, but that i lov'd rome more. o b. and, for my sake, stay here with antony. do grace to caesar's corpse, and grace his speech. o c. i thrice presented him a kingly crown, / which he did thrice refuse. was this ambition? od. i come to bury caesar, not to praise him.
Answers: 3
English, 22.06.2019 07:00
Give an example of one of the choices from the question above. explain what makes your example fit into this classification. use complete sentences, proper grammar, spelling and capitalization.
Answers: 1
Social Studies, 09.02.2021 16:30
English, 09.02.2021 16:30
English, 09.02.2021 16:30
Biology, 09.02.2021 16:30
Mathematics, 09.02.2021 16:30
Mathematics, 09.02.2021 16:30
Mathematics, 09.02.2021 16:30
Social Studies, 09.02.2021 16:30
Computers and Technology, 09.02.2021 16:30