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Helen [10]
3 years ago
8

A partially discharged car battery can be modeled as a 9.0-V emf in series with an internal resistance of 0.18 Ω . Jumper cables

are used to connect this battery to a fully charged battery, modeled as a 12-V emf in series with a 0.02-Ω internal resistance. How much current flows through the discharged battery? Express your answer using two significant figures. I = ________ A
Physics
1 answer:
Bad White [126]3 years ago
6 0

Answer:

The answer is <em>15A</em>

Explanation:

Terminal of like polarity are connected with jumpers of negligible resistance

Kirchoff's voltage law gives

E1 -E2 - IR1 - IR2 = 0

I(R1 + R20 = E1 -E2

I= 12 -9/ 0.18 + O.2 = 15A OF CURRENT WILL FLOW THROUGH DISCHARGED BATTERY.

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When did humans learn that the earth is not the center of the universe?
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When did humans learn that the Earth is not the center of the universe?

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4 Answers

Asked in 3 Spaces





Science - Next Generation

Alexander Somm

, Consultant, Investor Relations at Novelpharm AG (2015-present)

Answered Oct 16

What, it isn’t?!

Sorry, I had to.

As far as I have read and understood, the Sumerians and later the Babylonians both had astronomical calendars that already differentiated planets and stars. Earth was not the center to them, the Sun likely was. That was around 2,200 - 1,600 BC.

After that, Greek philosopher Aristarchus of Samos (310 - 230 BC) was the first (recorded) to have believed the solar system was organized around the Sun, rather than the Earth. His heliocentric model was unpopular during Aristarchus’ lifetime, although it would inspire astronomers centuries later, such as Copernicus and Galileo.

Now, there are numerous archeological findings (cave paintings) and studies, that all suggest an understanding of complex astronomy in prehistoric times dating back as far as 40,000 years. This also explains how early, prehistoric migrants may have navigated the seas.

Explanation:

hope it helps

have a good day

4 0
2 years ago
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