Physics, 02.12.2021 05:20, Trendymwah4211
Astronomers use a special kind of instrument called a spectrometer to analyze stars. Spectrometers can determine what stars are made of even if the stars are very far away. How is it possible for spectrometers to do this?
Answers: 1
Physics, 21.06.2019 21:30, krystalhurst97
Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.
Answers: 1
Physics, 22.06.2019 05:00, masie03
Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
Answers: 1
Physics, 22.06.2019 10:00, sofiaisabelaguozdpez
Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
Answers: 1
Astronomers use a special kind of instrument called a spectrometer to analyze stars. Spectrometers c...
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