subject
Physics, 23.08.2019 09:20 ashiteru123

Edwin hubble calculated the expansion rate of the universe. on what evidence did he base his calculation?
\l "\l " a. levels of background radiation
\l "\l " b. differences in redshift for galaxies
\l "\l " c. the existence of planets outside of our solar system
\l "\l " d. levels of helium in the universe

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 14:40
If you go to a nutrition store and buy a supplement, you can count on the fact that it is pure and safe because supplements are regulated, controlled, and inspected by the fda.
Answers: 1
question
Physics, 22.06.2019 12:30
Which levels of government establish and implement educational requirements for minors
Answers: 1
question
Physics, 22.06.2019 16:50
Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
question
Physics, 22.06.2019 18:30
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
Answers: 2
You know the right answer?
Edwin hubble calculated the expansion rate of the universe. on what evidence did he base his calcula...
Questions
question
Social Studies, 01.04.2021 05:30
question
Mathematics, 01.04.2021 05:30
question
Mathematics, 01.04.2021 05:30
question
Computers and Technology, 01.04.2021 05:30