Water in the atmosphere and within the clouds themselves cause light waves to refract and reflect, creating an assortment of colors. The patterns occur when light is absorbed by water droplets within the clouds. The amount of absorption that occurs depends on the temperature of the air. The patterns occur when light is reflected from water droplets within the clouds. The amount of reflection that occurs depends on the wavelength of the light, and shorter wavelengths are reflected at a greater angle than longer ones.
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Answer:
The jp2003parker guy is extremely wrong
So he says that the size wont matter and a physical change should occur, but how would the size change without having a physical change occur.
Explanation:
A nail rusting is an example of chemical change as the iron is oxidized to become rust. This is not a physical change.
From the reaction, we see that for every 2 moles of Al
reacted, 852 kJ of energy is released. So convert the mass given to moles:
moles Al = 48.7 g / (26.98 g/mol)
moles Al = 1.805 mol
So the energy evolved is:
Energy = -852 kJ / 2 mol * 1.805 mol
<span>Energy = -769 kJ</span>
Answer:
Elastic potential energy,
Explanation:
Charge,
Potential, V = 50 V
It is required to find the electric potential energy in a capacitor stored in it. The formula of the electric potential energy in a capacitor is given by :
So, the electric potential energy stored in the capacitor is