1.Gettingwater from a reservoir requires pumping it with the use of a motor. Using a motor driven pump, 3 x 10 raise to 6 kg of water are lifted with an average height of 80 m for about 12 minutes. a.Howmuch workis donein the first 12 mins?

1.Gettingwater from a reservoir requires pumping it with the use of a motor. Using a motor driven pump, 3 x 10 raise to 6 kg of water are lifted with an average height of 80 m for about 12 minutes. a.Howmuch workis donein the first 12 mins?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter3: Energy And Conservation Laws

Section: Chapter Questions

Problem 14P: . In Figure 3.10, the rock weighs 100 lb and is lifted 1 ft by the lever. (a) How much work is done?...

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Concept explainers

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest. 

Question

1.Gettingwater from a reservoir requires
pumping it with the use of a motor. Using a
motor driven pump, 3 x 10 raise to 6 kg of
water are lifted with an average height of 80 m
for about 12 minutes.
a.Howmuch workis donein the first 12 mins?
b.How much power do pumps deliver?
c.How long will it take to fill the tank that has a
capacity to hold 1.5 x10 raise to 7 kg of water?

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