Physics, 21.04.2021 19:00 bellajuliet13
Students are experimenting with circuits in their physics class, and they build the two
working circuits pictured below. The battery in each circuit is identical, and each bulb
(resistor) they add provides the same amount of resistance.
Circuit A
Circuit B
RI
R2
RE
H
W
w
They notice that every time they added bulb 3 (R3) to circuit A, the brightness of all
the bulbs dimmed, but when they added bulb 3 (R3) to circuit B, there is no change
to the brightness. Which explanation of this observation is most complete?
Answers: 2
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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
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Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2
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An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)
Answers: 1
Students are experimenting with circuits in their physics class, and they build the two
working ci...
Mathematics, 02.07.2020 07:01