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rosijanka [135]
4 years ago
14

When matter changes from one state to another, what do we call this process? A. a physical change B. a nuclear change C. an expl

osion D. chemical bonding
Physics
2 answers:
Contact [7]4 years ago
7 0

So it's going to be physical change

klemol [59]4 years ago
3 0
A. physical change

 Look at the way water freezes and  changes to ice<span>. The matter is still going to be the same. its just the physical property that changed.

<u>PHYSICAL= TEMPORARY</u>
<u>CHEMICAL= PERMANENT</u></span>
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Read 2 more answers
A heavy ball with a weight of 150 N is hung from the ceiling of a lecture hall on a 4.1-m-long rope. The ball is pulled to one s
AlladinOne [14]

Answer:

The tension in the rope is 262.88 N

Explanation:

Given:

Weight W = 150 N

Length of rope r = 4.1 m

Initial speed of ball v = 5.5 \frac{m}{s}

For finding the tension in the rope,

First find the mass of rod,

mg = 150                          ( g = 9.8 \frac{m}{s^{2} } )

  m = \frac{150}{9.8}

  m = 15.3 kg

Tension in the rope is,

  T = mg + \frac{mv^{2} }{r}

  T = 150 + \frac{15.3 \times (5.5)^{2} }{4.1}

  T = 262.88 N

Therefore, the tension in the rope is 262.88 N

7 0
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C

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