Question 2432: A water tank in the shape of a hemispherical bowl of radius 7m is filled with water to a depth of
1m. How much work is required to pump all the water over the top of the tank? (The density of water is 1000
m 3, and acceleration due to gravity is 9.8m/s
8 squar ).
a) 6860π J
b) 6860 J
c) 3430π J
d) 3430 J