A water tank measures in 14m by 80cm by 60cm .find it capacity the volume of water it hold in liters

V = 6720 [Lt]

Explanation:

The volume of a paralepiped can be found by means of the following expression:

V = L*W*H

where:

L = length = 14 [m]

W = width = 80 [cm] = 0.8 [m]

H = heigth = 60 [cm] = 0.6 [m]

V = volume [m³]

V = 14*0.8*0.6

V = 6.72 [m³]

Now we must apply the conversion factor of cubic meters to liters, this factor tells us that 1000 liters is equal to one cubic meter.

V = 6720 [Lt]

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000