Most of the time the towns get flooded and many people die and lose their homes and their jobs, businesses by the floods and the natural environment is destroyed ,air pollution is produced, the ecosystem could be disrupted and dams are known to fall over and dams are really expensive to build, The dams also cause geological damage, example earthquakes and spills happen.
The energy supplied to the water will be equal to the heat required for the boiling of water:
E = ΔQ
Pt = mL
where,
P = Power = 10 W
t = time = ?
m = mass of water = 1 kg
L = Latent heat of vaporization of water = 2.26 x 10⁶ J/kg
Therefore,
<u>t = 2.26 x 10⁵ s</u>
This time will be less than the actual time taken due to some heat loss during the transmission of this heat energy to the container in which water is held.
The magnitude of the force on positive charges will be and the magnitude of the force on the negative charge is .
Explanation:
Given:
The value of the charges, .
The length of each side of the triangle, .
Consider a equilateral triangle , as shown in the figure. Let two point charges of magnitude are situated at points and and another point charge is situated at point .
The value of the force on the charge at point due to charge at point is given by
The value of the force on the charge at point due to charge at point is given by
The net resultant force on the charge at point is given by
The value of the force on the charge at point due to charge at point is given by
The value of the force on the charge at point due to charge at point is given by
The net resultant force on the charge at point is given by
The value of the force on the charge at point due to charge at point is given by
The value of the force on the charge at point due to charge at point is given by
The net resultant force on the charge at point is given by
Substitute for , for and for in equation (1), we have
Substitute for , for and for in equation (2), we have
Substitute for , for and for in equation (3), we have