Physics, 05.05.2021 06:00 RSanyuathey711
When a red giant forms, the star’s core collapses inward and its outer layers spread out and cool.
a. TRUE
b. FALSE
Answers: 3
Physics, 22.06.2019 13:00
Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.
Answers: 2
Physics, 22.06.2019 16:40
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
Answers: 3
Physics, 23.06.2019 06:30
Chi walked 100 meters in 5 minutes. she took another 15 minutes to walk another 400 meters to reach her house. what is her average speed?
Answers: 1
When a red giant forms, the star’s core collapses inward and its outer layers spread out and cool....
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