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Alekssandra [29.7K]
3 years ago
8

Intensive properties can be: Select the correct answer below:

Physics
1 answer:
jarptica [38.1K]3 years ago
4 0

Answer: The answer is 3 either physical or chemical properties

Explanation:

because all properties of matter are either physical or chemical

Hope this helps :)

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True or False : Waves lose most of their energy when traveling across the ocean.
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true

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How is energy conserved in a transformation?
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A train travels 100 km east and then 75 km west. What is the magnitude of<br> its displacement?
tamaranim1 [39]

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6 0
3 years ago
A 2.0 kg block is pulled across a horizontal surface by a 15 N force at a constant velocity. What is the force of friction actin
lianna [129]

Answer:

<em>The force of friction acting on the block has a magnitude of 15 N and acts opposite to the applied force.</em>

Explanation:

<u>Net Force </u>

The Second Newton's law states that an object acquires acceleration when an unbalanced net force is applied to it.

The acceleration is proportional to the net force and inversely proportional to the mass of the object.

If the object has zero net force, it won't get accelerated and its velocity will remain constant.

The m=2 kg block is being pulled across a horizontal surface by a force of F=15 N and we are told the block moves at a constant velocity. This means the acceleration is zero and therefore the net force is also zero.

Since there is an external force applied to the box, it must have been balanced by the force of friction, thus the force of friction has the same magnitude acting opposite to the applied force.

The force of friction acting on the block has a magnitude of 15 N opposite to the applied force.

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