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Galina-37 [17]
3 years ago
9

After the car with the dead battery is running, the cables can be disconnected in the reverse order that they were connected. wh

ile unhooking the jumper cables, the positive and negative cables almost touch and a spark jumps between the ends of the cables. this spark is caused by the movement of electrons through the air between the battery terminals. in what direction are the electrons traveling during the spark?
Physics
1 answer:
azamat3 years ago
4 0
Hi, thank you for posting your question here at Brainly.

Electricity is the flow of electrons due to a potential difference called voltage. The electrons naturally flows from a higher to a lower potential. Thus, the electrons flows from the positive to the negative terminal.
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In a Young's double-slit experiment, a set of parallel slits with a separation of 0.142 mm is illuminated by light having a wave
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Answer:

1.152\ \mu m

1.44\ \mu m

Explanation:

d = Gap between slits = 0.142 mm

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m = Order = 2

Difference in path length is given by

\delta=dsin\theta=m\lambda\\\Rightarrow \delta=2\times 576\times 10^{-9}\\\Rightarrow \delta=0.000001152\ m\\\Rightarrow \delta=1.152\times 10^{-6}\ m=1.152\ \mu m

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For dark fringe the difference in path length is given by

\delta=(m+\dfrac{1}{2})\lambda\\\Rightarrow \delta=(2+\dfrac{1}{2})\times 576\times 10^{-9}\\\Rightarrow \delta=0.00000144\ m=1.44\ \mu m

The difference in path length is 1.44\ \mu m

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3 years ago
The engine oil at 150 degree Celsius is cooled to 80 degree Celsius in a parallel flow heat exchanger by water entering at 25 de
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Answer:

Explanation:

Attach is the solution

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A construction worker is carrying a load of 40 kg over his head and is walking at a constant velocity if he travels a distance o
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Answer:

W = 0

Explanation:

We are given with, a construction worker is carrying a load of 40 kg over his head and is walking at a constant velocity. He travels a distance of 50 m.

The work done by an object is given by :

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So,

W=mad

m is mass

a is acceleration

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The worker is moving with constant velocity, its acceleration will be 0. So, the work done by the worker is 0.

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Answer:

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3 years ago
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