(6411 # 8 p. 351) A chain 180 meters long hangs over the edge of a building that is 180 meters tall. The chain weighs 25 newtons per meter. There is a bucket at the end of the chain resting on the ground. Initially the bucket and the water it contains weigh 4000 newtons. As the bucket is lifted water leaks from the bucket at a rate of 20 newtons per meter that the bucket is lifted. Setup, but do not evaluate, an integral that gives the amount of work done in lifting the bucket and chain from the point where the chain 150 meters long to the point where the chain is 50 meters long. The amount of work done is 490, 000 J.
Viscosity
The measure of the resistance of a fluid to flow is known as viscosity. Most fluids have some resistance to motion, the resistance provided by the fluid is called viscosity. This resistance is created by the force of attraction between the fluid molecules. If you pour water through a funnel, it flows easily and quickly, because it has very little resistance. But if you pour honey through a funnel, it may take a little time longer, as the density of honey is high.
Poiseuille's Law
The law of Poiseuille or Poiseuille's equation states that the pressure drop of an incompressible fluid especially a liquid in a laminar flow that passes through a cylindrical tube of length L, radius r, pressure gradient ΔP, and mainly depends on the viscosity of the fluid is nothing but the pressure difference of the layers of fluids. ΔP=P1-P2
Drag Forces
Forces that occur due to the movement of fluid are known as fluid mechanics. Following are the fluids present:
Please answer the question with steps and correct answers.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 27 images
