Answer:
equilibrium
Explanation:
acceleration will remain constant
Answer:
Set for what? did U finish the question?
If the length and linear density are constant, the frequency is directly proportional to the square root of the tension.
2Fe(s) + O2 -> 2FeO(s)
<span>2 'Fe' atoms on both sides </span>
<span>2 'O' atoms on both sides</span>
Answer:
160790 J
Explanation:
We can find the heat necessary for the ice to go from -20 degrees Celsius to 0 degrees Celsius:

Where
is the specific heat of ice, that is the amount of heat that must be supplied per unit mass to raise its temperature in a unit.

We must calculate the latent heat of fusion required for this ice mass to change to water:

Where H=334 J/g is the specific latent heat of fusion of water, that is the amount of energy needed per unit mass of a substance at its melting point to change from the solid to the liquid state.

Then we calculate the heat necessary for the water to go from 0 degrees Celsius to 20 degrees Celsius:

Where
is the specific heat of water, that is the amount of heat that must be supplied per unit mass to raise its temperature in a unit.

Finally the 3 results are added:
