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Juli2301 [7.4K]
4 years ago
11

Jane placed two bar magnets on her desk next to each other with like poles facing. She then sprinkled some iron filings around t

he magnets. Which of the following images best shows how the iron filings arranged themselves?

Physics
2 answers:
baherus [9]4 years ago
4 0

Answer:

Top Right image

Explanation:

Like poles of two magnets repel each other. Conventionally the magnetic lines of force are always run  from north to South pole of magnet. In this case the lines of force are Head-to-Head thus repelling each other and forming the Top Right Image.

viktelen [127]4 years ago
3 0

Answer:

B.

Explanation:

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A large magnetic flux change through a coil must induce a greater emf in the coil than a small flux change. A) True B) False
bixtya [17]

Answer:

False

Explanation:

Faraday's law gives the relationship between the induced emf and the rate of change of magnetic flux i.e.

\epsilon=\dfrac{-d\phi}{dt}

The given statement "A large magnetic flux change through a coil must induce a greater emf in the coil than a small flux change" is false. The reason is that if the rate of change of magnetic flux is greater, then its will induce more emf. It would mean it does not say about emf.

Hence, it is false.

3 0
4 years ago
Using newtons second law of motion, how fast for 100 KG object accelerates 350 N of force is applied to
fenix001 [56]

Answer:

3.5m/s^2

Explanation:

From Newton's second Law of Motion

F = ma

Where F is the applied force, m is the mass of the object and a is the acceleration.

F = 350 N

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350N = 100×a

a = 350/100

a = 3.5m/s^2

The acceleration of the object will be 3.5m/s^2

6 0
3 years ago
a runner covers the last straigjt stretch of a race in 4 s. during that time, he speeds up from 5m/s to 9m/s.
PtichkaEL [24]

During that final period of time,
his acceleration is
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8 0
3 years ago
Which statement is true about the Big Bang Theory?
zmey [24]
I think it’s A.) it explains why the universe is made up of matter
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3 years ago
Comparison between copper properties and aluminium properties​
mixas84 [53]
Hopes this helps:

Answer: Aluminum has 61 percent of the conductivity of copper, but has only 30 percent of the weight of copper. That means that a bare wire of aluminum weights half as much as a bare wire of copper that has the same electrical resistance. Aluminum is generally more inexpensive when compared to copper conductors.
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