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Sophie [7]
3 years ago
13

Andrew shakes a rope, and the rope makes a wave as shown.

Physics
2 answers:
weeeeeb [17]3 years ago
7 0

Answer: Option C. Is the correct answer.

Explanation: Wave length is the distance between the crest of each wave. If you were to decrease it you would be decreasing the distance between each wave therefore making it smaller and closer together as option C. shows.

DanielleElmas [232]3 years ago
3 0

c.

because its a decreased line

"please give me brainliess"

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2. A solenoid. Suppose the south end of a bar magnet was introduced to the right end of this solenoid at a constant velocity. Wh
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2) deflection must be towards the negative side of the voltage.

4) the correct statements are: b and c

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2) This question is based on Faraday's law of induction, when we introduce a magnet in a solenoid an induced current is produced that generates a voltage that is given by

           E = - N d \phi_{B} / dt

where \phi_{B} = B. A

The bold are vectors

Therefore, when applying this formula to our case, the induction lines of the magnetic field increase as we approach the solenoid, as the South pole approaches the lines are in the direction of the magnet, therefore the normal to the solenoid that has an outgoing direction and the magnetic field has 180º between them and the cos 180 = -1; consequently the deflection must be towards the negative side of the voltage.

4) From the Faraday equation we can see that the inductive electromotive force depends

* The magnitude of B that changes over time

* The area of ​​the loop that changes over time

* The angle between B and the area that changes over time

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With this analysis we will review the different alternatives given

a) False. It takes a temporary change and an absolute value of B

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d) False. A temporary change of area is needed, in addition to increasing the area the current increases

We can see that the correct statements are: b and c

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1) La longitud del brazo de potencia de una palanca es de 0,0035 hectómetros y la del brazo de resistencia es de 55 centímetros.
Arlecino [84]

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Entonces seria 127 para vencer.

Explanation:

espero averte ayudado:-)

6 0
3 years ago
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