Physics, 05.03.2021 21:40 haybales6019
A turtle moves at an average speed of 0.2m/S towards the finish line that is 80m away from the starting line. A rabbit, racing with the turtle, leaves the starting line 5.4 minutes after the turtle. The speed of the rabbit is 3.6km/h. Which one of them wins the race? Justify
Answers: 1
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 07:30
Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories
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Physics, 22.06.2019 12:30
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
Physics, 22.06.2019 13:10
Most short-period comets do not have randomly oriented orbits because
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A turtle moves at an average speed of 0.2m/S towards the finish line that is 80m away from the start...
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