# Search results

1. ### What are the other types of geothermal cycles aside from dry, binary

What are the other types of geothermal cycles aside from dry, binary and flash?
2. ### Circles and triangles

In my solution, first circle is 10 then the second is 5. after that, I used s = a/(1-r). a=25 since 5 will be squared and r=1/4. So my solution is A = pi[10^2 + 5^2 +25/(1-1/4). so my answer becomes 475/3 pi.
3. ### Circles and triangles

Homework Statement Please see the attached figure The radius of the biggest circle is 10. The required is the sum of all circles and the sum of all triangles in the figure. There is an infinite number of circles and triangles. My answers are: for circle: 475/3 pi for triangle: 175/2...
4. ### Buoyancy of a pail of water problem

Ok. I got it now. Thanks a lot.
5. ### Buoyancy of a pail of water problem

So buoyant force will be added? I got it. How about if water spills? The spilled water will be the buoyant force that will be out of the pail. However, the object exerts a force equal but opposite of the buoyant force, so it adds weight? correct?
6. ### Buoyancy of a pail of water problem

So it adds weight. The weight added will be the weight of the object when in air, since buoyant force will be cancelled?
7. ### Buoyancy of a pail of water problem

before, the tension is the weight of the object. when submerged, the tension change since there is a bouyant force that acts on the object. Am I correct?
8. ### Buoyancy of a pail of water problem

Well, I think it does not add. Since the object is hung? Am I correct?
9. ### Buoyancy of a pail of water problem

I have a question, if a hung object is submerged in a pail of water, does the weight of the pail with water increase. The object is still hung and no water spills.
10. ### Design suggestion

Suggest some designs that can be a contest for 3rd year college students. The materials that will be used are recycled as much as possible. For example, a mouse trap car.
11. ### Diameter 0.8 m height 1.2 m floats in water

This what I think: since the liquid is more dense than water, then the cone will float a little. From triangle, 0.8 becomes 0.8+y and 0.4 becomes 0.4-y. The ratio and proportion becomes 0.4/1.2 = x/(0.8 + y). Am I correct? or the cone will sink a little?
12. ### Diameter 0.8 m height 1.2 m floats in water

Homework Statement Given: diameter 0.8 m height 1.2 m floats in water how far will it sink in a liquid (density =1360 kg/m^3) Homework Equations Buoyant force The Attempt at a Solution In the attachment I'm stuck on how to find the volume of the submerged cone in the...

14. ### Cooling and dehumidifying

Homework Statement Moist air at 40 C and 90% R.H. enters a dehumidifyer at the rate of 300 m3/min. The condensate and the saturated air exit at 10oC through separate exits. The pressure remains constant at 100 kPa. Determine (a) the mass flow rate of dry air, (b) the water removal rate, and...

16. ### Help with the viscosity

Homework Statement Help with the viscosity. The problem is in the attachment. My prof does not yet teach the lesson but we have to answer the problem. Homework Equations The Attempt at a Solution
17. ### Torsional shear

Is J there the J of the smaller circle, with the inside diameter? I got 243 Mpa which is larger than 150 Mpa.
18. ### Torsional shear

The J and r are already substituted in the formula I used. Ok thanks.
19. ### Torsional shear

Homework Statement Given: hollow steel shaft Torque = 5400 Nm Torsional Shear = 150 MPa Required: Inside diameter Outside Diameter Stress on the inside of the shaft Homework Equations The Attempt at a Solution I solved both the diameters which are 64.49 mm and 48.37 mm...

21. ### Heat transfer (steady state, one dimensional)

Homework Statement Find the heat flow and the interface temperatures of the given figure. Homework Equations The Attempt at a Solution Do solve it correctly? I do not know how to solve the interface temperatures in case of parallel. Can you explain to me how to solve it
22. ### Ultimate analysis

who knows what should i do?
23. ### Ultimate analysis

Homework Statement given the ultimate analysis of the fuel c - 88.3% h - 9.5% o - n - s - 1.4% ash - 0.8% find the: a. raf and rgf b. concentration of so2 and particulate matter if excess air is 20%. i know how to calculate the raf and rgf, i also know how to compute the so2 and...
24. ### Heating Water

does the specific heat capacity has something to do with this?
25. ### Heating Water

Why heating water at 90C takes longer than heating water at lower temperatures such as 70C?

thanks for the information. About my second question, what steel is used in manufacturing LPG cylinder? Like the steel C1040. By the way, what is beading process in manufacturing or metalworks?