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san4es73 [151]
2 years ago
11

The end of one bar magnet is placed near the end of another bar magnet. The two ends seem to push each other apart. Which of the

se statements is true?A.The two ends are like poles.B.The two ends are unlike poles.C.There are like charges on the two ends.D.There are unlike charges on the two ends
Chemistry
1 answer:
rosijanka [135]2 years ago
5 0

Answer:

A.The two ends are like poles

Explanation:

Magnets are composed of a north pole and a south pole. If two like poles of a magnetic are placed near each other, the two ends seem to push apart.

The reason for this is that, when like poles of two magnets are made to face each other, the lines of forces are in opposite directions, hence the magnets repel.

If unlike poles of two bar magnets are made to face each other, the magnetic lines of force are now in the same direction therefore the unlike poles attract each other.

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1) Use the fact that 1 mol of gas at STP occupies 22.4 liter

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3 years ago
You have a mass of 54 kg and are sitting on a stool. The normal force the stool applies on you is ...
Karo-lina-s [1.5K]

Answer:

529.2 N

Explanation:

As we have studied the first law of motion, which states that every action has some reaction, equal in magnitude but having an opposite direction.

The force that is acting on the student will be due to gravitational force, that is equal to his weight.

                                              F=mg: 54kg x 9.8m/s^2 =529.2 N

So the weight of student is exerting downwards towards the stool and land. The stool will also exert a force on the student that will be equal in magnitude but opposite in direction, then it will be 529.2 N.

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Hope it helps!

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2 years ago
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