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Stels [109]
2 years ago
7

Does melting change substances into other substances?

Physics
2 answers:
Shtirlitz [24]2 years ago
7 0

You tell me.

Ice is frozen water.

What substance is melted ice ?

spayn [35]2 years ago
4 0

Answer:

Yes, I think

Explanation:

Melting is a process that causes a substance to change from a solid to a liquid. Melting occurs when the molecules of a solid speed up enough that the motion overcomes the attractions so that the molecules can move past each other as a liquid.

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3 years ago
Which statement about the volume and pressure of a gas is the most accurate? Volume of a gas is equal to pressure of that gas in
Julli [10]

Answer: Volume of a gas is inversely proportional to pressure of that gas in any container.

Explanation:

Hi, according to Boyle's Gas law, the volume of a gas is inversely proportional to the pressure of that gas, at a constant temperature.

The expression is:

P1.V1= P2.V2

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5 0
2 years ago
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Does the atmosphere contain 21% nitrogen in 78% oxygen
Alex777 [14]

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7 0
2 years ago
Because of your success in physics class you are selected for an internship at a prestigious bicycle company in its research and
tiny-mole [99]

To develop the problem it is necessary to apply the equations related to the moment of inertia.

The given values can be defined as,

M = 1.0 kg

r = 0.5 m

m = 10 g

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According to the definition of the moment of inertia applied to the exercise we can arrive at the equation that,

I = I_{rim} + n * I_{spoke}

Where n is the number of spokes necessary to construct the wheel.

I_{rim} = M*r^2 = 1.0 * 0.5^2

I_{spoke} = \frac{1}{3} * m * r^2 = \frac{1}{3}* 10 * 10^-3 * 0.5^2

Replacing the values at the general equation we have,

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Solving for n,

n = 36

Therefore the number of spokes necessary to construct the wheel is 36

PART B) The mass of the wheel is given by the sum of all masses and the total spokes, then

M_w= M + n*m

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Therefore the mass of the wheel must be of 1.36Kg

4 0
3 years ago
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Roman55 [17]

Hello,

I believe they are a lever and a wedge.

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