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Nataliya [291]
2 years ago
8

Is cracking the eggs a physical change or a chemical change and why

Physics
1 answer:
matrenka [14]2 years ago
3 0

Answer:

Cracking of an egg is a physical change since the egg and the stuff inside does not change but the shape or appearance of the shell changes.

Explanation:

Hope it helps

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What do nebulae have the most in common with?
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3 years ago
A 90 kg painter is standing on a horizontal wooden scaffolding of length 10 m, which is supported on each end by a rope. The pai
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Explanation:

For equilibrium, \sum M = 0.

So,   8 m \times mg - (10 m) T_{1} = 0

             T_{1} = \frac{8 \times mg}{10}

                        = \frac{8 \times 90 \times 9.8}{10}

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Also, for equilibrium \sum F_{y} = 0

              T_{1} + T_{2} - mg = 0

or,         T_{2} = mg - T_{1}

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                        = 176.4 N

Thus, we can conclude that the tension in the first rope is 176.4 N.

8 0
3 years ago
A person in a kayak starts paddling, and it accelerates from 0 to 0.61 m/s in a distance of 0.39 m. If the combined mass of the
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Answer:

35.3 N

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U = 0, V = 0.61 m/s, s = 0.39 m

Let a be the acceleration.

Use third equation of motion

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0.61 × 0.61 = 0 + 2 × a × 0.39

a = 0.477 m/s^2

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F = 74 × 0.477 = 35.3 N

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Facts about Alessandro Volta?
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