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VARVARA [1.3K]
3 years ago
6

As a sample of water is heated, the energy is used to overcome the attractions between the molecules so that they are no longer

held close together and can move in random directions. Then, the kinetic energy of its molecules increases. Which sections of the heating curve illustrate this process?

Physics
2 answers:
SpyIntel [72]3 years ago
6 0

B. This is an example of a graph showing the phase changes of a certain material in this case water. Before A, a solid (ice) is being heated and then at A all of the energy provided or the heat provided to the solid to cause it to melt goes into breaking the bonds between the molecules of the solid. At C, the liquid (water) is heating up again and then at B the liquid is vaporizing into a gas (water vapor), which fits the description given. At D the gas is continuing to heat up and it will continue to heat up as long as heat is provided to it.

FromTheMoon [43]3 years ago
5 0

Answer:

b followed be d APEX

Explanation:

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In a semiclassical model of the hydrogen atom, the electron orbits the proton at a distance of 0.053 nm. Part A What is the elec
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Answer with Explanation:

We are given that

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We know that the electric potential

V=\frac{kq}{r}

Where k=9\times 10^9

V=\frac{9\times 10^9\times 1.6\times 10^{-19}}{0.053\times 10^{-9}}

V=27.17 V

B.Potential energy of electron,U=\frac{kq_e q_p}{r}

Where

q_e=-1.6\times 10^{-19} c=Charge on electron

q_p=q=1.6\times 10^{-19} C=Charge on proton

Using the formula

U=\frac{9\times 10^9\times (-1.6\times 10^{-19}\times 1.6\times 10^{-19}}{0.053\times 10^{-9}}

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8 0
3 years ago
Which of the following represents an upright image? <br> A. -do<br> B. +m<br> C. -m<br> D. +do
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B. +m

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The value that should be reported for the total mass of three samples of iron will be 0.143 Kg or 143 g

<h3>What is Mass and Weight ?</h3>

Mass is the quantity of matter. While weight is a gravitational pull on an object. Mass is measured in Kg while weight is measured in Newton.

What value should be reported for the total mass of three samples of iron weighing 117.0 g, 19.43 g, and 6.1043 g?

The total mass will be the sum of the three masses.

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Therefore, the value that should be reported for the total mass of three samples of iron will be 0.143 Kg or 143 g approximately

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