The sky changes colors at sunset because the atmosphere ABSORBS some colors of light more than other colors.
The second choice ("The atmosphere bends light") is a correct statement, but it's not the reason that the sky changes colors at sunset.
Answer:
Louder
Explanation:
The amplitude of a sound wave shows its loudness or volume. A higher amplitude means a louder sound, and a smaller amplitude means a quiet sound
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Explanation:
Impulse is change in momentum:
I = Δp
I = (1400 kg) (27 m/s) - (1400 kg) (0 m/s)
I = 37800 kg m/s
Impulse is also average force times time:
I = F ΔT
37800 kg m/s = F (7 s)
F = 5400 N
Answer:
The train will have a greater impact than the bike
The train will have a bigger net force than the bike, so the acceleration of the train will be slower than the bike. In order to achieve the same acceleration, the train requires a bigger net force.
All these people perform similar duties due to their similar profession.
All these People are the astronomers so they used various instruments that are present at their time in order to study the heavenly bodies such as stars and planets present in the sky. They also analyze their findings with the help of researches and experiments. They also develop theories that are based on personal observations and tested the theories of other astronomers in order to verify their theories.
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