Physics, 20.10.2019 18:30 darriennichole
Which phenomenon related to light allows scientists to measure the distance between a star and earth?
a) dark patches appear in the electromagnetic spectrum emitted by stars.
b) light waves spread out as they move farther from their source.
c) stars have different colors based on their temperature.
d) stars have unique elements that make up their atmospheres.
Answers: 2
Physics, 22.06.2019 11:10
Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603
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Physics, 22.06.2019 16:30
Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same
Answers: 1
Physics, 22.06.2019 20:00
What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
Answers: 1
Which phenomenon related to light allows scientists to measure the distance between a star and earth...
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