Physics, 18.12.2019 20:31 redstar215
What will the temperature of the cosmic microwave background be when the average distances between galaxies are 1.7 times as large as they are today? (hint: the peak wavelength of photons in the background will then also be 1.7 times as large as it is today.)
Answers: 1
Physics, 22.06.2019 07:00
Examine the equation. 23490thβ23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block
Answers: 1
Physics, 22.06.2019 07:00
Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount
Answers: 1
Physics, 22.06.2019 14:00
Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
Answers: 3
What will the temperature of the cosmic microwave background be when the average distances between g...
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