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The boom cylinders (2) of a 350D LC John Deere excavator have a bore diameter of 145 mm and a stroke of 1520mm. The hydraulic pressure of the system can be boosted up to 36.3 MPa when breaking hard ground or lifting wet sand or gravel. What is the maximum extending speed of both cylinders. Assume all the engine power of 202 kW is converted into hydraulic power.

I got 0.17 m/s but wanted to make sure if thats right. If you can show the step by step method of solving this problem. I would greatly appreciate it.

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A volumetric flow of 50 gpm is supplied to a 2.5 in bore diameter cylinder with a 36in stroke. If the supply pressure is 1500 psi, what is the maximum hydraulic power the cylinder can develop?

I got 288750 lb/s as my answer for the Power. I just want to see if that is right.

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Fluid is flowing horizontally at 100 GPM from a 3 inch diameter pipe (point 1) to a 2 inch diameter pipe (point 2). If the pressure at point 1 is 15 psi, find the pressure at point 2. The Specific gravity of the hydraulic oil is 0.9

I am a bit confused. Can someone please help.

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I know the formula is Q=v*A and I found the area. But i can't find the inside diameter which is what this question is looking for.

Please help.

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A conical shaped container has 2.4 meters of oil (S.G=0.9) and 1.5 meters of water (S.G=1). It has a 1.2 m diameter top and 3.0 meter bottom with a constant slope between these diameters over the total height of 3.9 meters. It is open to the atmosphere at the top. Calculate the force on the bottom of the container.

I am lost. Please show me how to find the force. its a bit confusing.

I was working on a pressure problem. I need some help.

The pressure in an unknown fluid at a depth of 8 ft is measured to be 3.7 psig. compute the specific gravity of the fluid.

A rectangular trough, 2.0 long, 0.70 wide, and 0.50deep, is completely full of water. One end of the trough has a small drain plug right at the bottom edge.

I just turned on my computer and played a song and the people are sounding like chipmunks. Any ideas as to what i can do?

Just brief me as to why you think the college you chose is the best according to you.

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Do you agree or disagree?

Give reasons to support your answer.

Beneficial abiotic factors for coral growth?

Adaptations of organisms living on coral reefs.

you are given three samples of sulfuric acid of different concentration. How do I arrange them in order of ther concentrations??

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Please give atleast 5 points...

This makes use of the Haber Process....

This question is on the book Beka Lamb by Zee Edgell. I am having a little trouble answering this question.. Giving me some points would really make it easier for me.. Also, quotes would really increase my interpretation.

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carbon-dioxide emissions, greenhouse gases, ozone depletion..

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and climate change???

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