Recent content by darkmagic

What are the other types of geothermal cycles aside from dry, binary and flash?

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.

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...

Ok. I got it now. Thanks a lot.

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?

So it adds weight. The weight added will be the weight of the object when in air, since buoyant force will be cancelled?

before, the tension is the weight of the object. when submerged, the tension change since there is a buoyant force that acts on the object. Am I correct?

Well, I think it does not add. Since the object is hung? Am I correct?

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.

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.

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?

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...

please explain this to me

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...

please help me