Physics, 15.01.2021 23:00 arturocarmena10
1. Scientists use models of the Sun to better understand how it works. The
currently accepted model of the Sun indicates that it has a dense core
surrounded by different layers. How is energy transferred from the core of
the Sun to its outer layers?
A. Energy radiates outward from the core as visible light.
B. Energy is carried inward from the outer layers by convection.
C. Energy is radiated out from the core first, then carried to the outer layers
by convection.
D. Energy is carried out from the core by convection first, then radiated to
the outer layers.
Answers: 3
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You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?
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1. Scientists use models of the Sun to better understand how it works. The
currently accepted model...
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