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Zina [86]
3 years ago
10

I really need help asap.

Physics
2 answers:
Semmy [17]3 years ago
8 0
The answer is answer chioce B.

Zanzabum3 years ago
7 0
The answer is B.

Hope this helps.
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A current is induced by moving a magnet in and out of a coil of wire. What will happen to the induced current if you move the
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the answer is c. The induced current will increase

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Which of the following is the equivalent resistance of the circuit shown?
erica [24]
I believe the answer is going to B I hope this helps and good luck
6 0
3 years ago
Lillie is running. She increases her initial speed of 30 km/h to 40 km/h so she can win the race. If she takes 0.05 hours to com
Rudiy27

Answer:

200 km/h²

Explanation:

<em>Use the formula:</em>

acceleration = (final velocity - initial velocity) ÷ time taken

final velocity = 40 km/h

initial velocity = 30 km/h

time taken = 0.05 hours

<em>Substitute (plug in) the values into the equation:</em>

acceleration = (40 - 30) ÷ 0.05

acceleration = 10 ÷ 0.05

acceleration = 200 km/h²

7 0
3 years ago
A 100-turn coil with an average radius of 0.04 m is placed in a uniform magnetic field so that ϕ = 60°. The strength of the fiel
gogolik [260]

<em><u>Five</u></em>

This is exactly like your question 2. You need only substitute the given numbers here.

Givens

  • N = 100 turns
  • delta B = 0.25
  • r = 0.04
  • Area = pi * r^2 = 3.14 * 0.04^2 = 5.02 * 10^-3
  • Cos 60 = 1/2 = 0.5

Formula

e = N * delta B  * Area * cos phi

Solution

e = - 100 * 0.25 *  5.02 * 10^-3 * 0.5

e = 0.0628 = 0.063

Answer

A

<em><u>Six</u></em>

This is a notes question. The result is a sine curve. I don't know how they are counting the change in direction. Is a rising curve different from a falling curve? For sure going from plus to minus is a change in direction, but I still don't know how to count it. It will depend on what you  have been told.

I would answer 4 but this is by no means certain. The only other possible answer is 2

4 0
4 years ago
Read 2 more answers
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