"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

The amount of workdone by in emptying the tank by pumping the water over the top edge is

Explanation:

Given that the tank is 6 feet across the top and 5 feet high.

Using the similar triangles.

5r = 3y

Thus; each disc is a circle with area

A =

The weight of each disc is ;

= 62.4 ×

=

The distance pumped is 5-y

Thus; the workdone in pumping the tank by pumping the water over the top edge is :

The amount of workdone by in emptying the tank by pumping the water over the top edge is

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.