Athrough shaped tank is located 3 meters underground (the top of the tank is 3 meters away from ground level.) the dimensions of the tank are: height h = 5 meters, length c = 10 meters, base width a = 4 meters and top width b = 8 meters. if the tank is completely full, find the work done in pumping all the water out of the tank to ground level.

900kJ

Explanation:

Work done hereis lifting that water mass on to the surface level

v = volume of the tank

d= density of water (1000kg/m3)

g = gravotational acceleration

workdone=Weight * distance

                = (v*d*g)*distance

                =

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.