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Darya [45]
3 years ago
7

Does the number of particles change as the substance changes its state?​

Physics
1 answer:
Leviafan [203]3 years ago
4 0

Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas. ... When substances change state there is no change in mass so if 100 g of ice is melted 100g of water are formed this will boil to form 100g of steam (this is called "conservation of mass").

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the forces acting on it must be strong because gravity is pushing the ball down

Explanation:

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2 years ago
What happens to a path of a light ray parallel to the principal axis, after it passes through a converging
Simora [160]

Answer: The ray that passes through the focal point on the way to the lens will refract and travel parallel to the principal axis. ... All three rays should intersect at exactly the same point.

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3 years ago
An athlete in a gym applies a constant force of 50 N to the pedals of a bicycle to keep the rotation rate of the wheel at 10 rev
marishachu [46]

Answer:

Explanation:

Given that,

Force applied to pedal F = 50N

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τ = 15 Nm

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power delivered to the bicycle by the athlete is 942.48 W

6 0
3 years ago
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The source of heart for a (an) close system is electricity.
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A train’s mass is 18181.81 kg. What is its weight?
wel

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The trains mass in pounds would be 40084.029 if you would round it to the hundreths

Explanation:

7 0
3 years ago
Read 2 more answers
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