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hoa [83]
3 years ago
5

Is it possible for one energy store to transfer into another energy store ?Explained answer

Physics
2 answers:
alekssr [168]3 years ago
7 0

Answer:

Yes. Energy changes from one form to another.

Explanation:

It is possible. For example, a rock sitting on a cliff has lots of potential energy. As it falls down the cliff, the potential energy turns into kinetic energy.

Another example would be a spring. When a spring is stretched it has a lot of elastic potential energy. When you release it it becomes kinetic energy.

liraira [26]3 years ago
6 0

Answer:

Yes

Explanation:

Energy can be transferred from one object to another or between energy stores within the same object. For example on a pool table when white ball hits another ball energy is transferred from the kinetic store of the white ball to the kinetic store of the other ball.

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What mass of ice (in g) can be melted if 27.2 kJ of thermal energy are added at the freezing point? Use molar mass = 18.02 g/mol
san4es73 [151]

Answer : The mass of ice melted can be, 3.98 grams.

Explanation :

First we have to calculate the moles of ice.

Q=\frac{\Delta H}{n}

where,

Q = energy absorbed = 27.2 kJ

\Delta H = enthalpy of fusion of ice = 6.01 kJ/mol

n = moles = ?

Now put all the given values in the above expression, we get:

27.2kJ=\frac{6.01kJ/mol}{n}

n=0.221mol

Now we have to calculate the mass of ice.

\text{Mass of ice}=\text{Moles of ice}\times \text{Molar mass of ice}

Molar mass of ice = 18.02 g/mol

\text{Mass of ice}=0.221mol\times 18.02g/mol=3.98g

Thus, the mass of ice melted can be, 3.98 grams.

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If the faster stone takes 12.0 s to return to the ground, how long will it take the slower stone to return?
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