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Physics, 22.06.2019 05:30
What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?
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Physics, 22.06.2019 07:00
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
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Physics, 22.06.2019 14:30
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
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Physics, 23.06.2019 04:31
Ivana walks 2km north then turns around and walks 3km south
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Mathematics, 19.12.2020 07:30
Mathematics, 19.12.2020 07:40
Mathematics, 19.12.2020 07:40
Mathematics, 19.12.2020 07:40
Mathematics, 19.12.2020 07:40
Mathematics, 19.12.2020 07:40
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History, 19.12.2020 07:40
Geography, 19.12.2020 07:40