# 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

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...
3. ### 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.
4. ### 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.
5. ### 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...
6. ### 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...
7. ### 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
8. ### 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...
9. ### 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
10. ### 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...
11. ### Heating Water

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

Homework Statement Given the steel C1040. What do you mean by C, 10, and 40 in that steel? What is the common type of steel used in manufacturing LPG cylinder?
13. ### Beading processes in metalworks such as in manufacturing process?

Homework Statement What are the definitions and functions of drawing, trimming, and beading processes in metalworks such as in manufacturing process?

Homework Statement I bought an FM radio mono kit. After I assembled it, it works. But I want to know how to have a clear reception or signal and to acquire more stations. What should I do? Any tips or techniques? does the coil affects the signal? Homework Equations The Attempt at a...
15. ### Work and energy

Homework Statement Can someone teach me on how to solve this problem? This is a dynamics mechanics problem. I tried everything I know but I cannot really get the answer. Please help ASAP. Homework Equations The Attempt at a Solution
16. ### Factor in the three phase

Homework Statement Can someone tell me how the (square root of three) factor is derived in a three phase generator? Homework Equations The Attempt at a Solution
17. ### Equal to zero if angular velocity is constant

Homework Statement Which is equal to zero if angular velocity is constant, normal or tangential acceleration? The one with zero angular velocity is a crank. The crank moves at a fixed point. Homework Equations The Attempt at a Solution
18. ### Sides of triangle

Homework Statement how can i find the length of an oblique triangle given the 3 altitudes (the line drawn perpendicular from a point of the triangle to the opposite side). I have no idea on how to solve it. Homework Equations The Attempt at a Solution
19. ### Proportionality of triangles problem

Homework Statement Is any formulas similar to that of proportionality of the triangles to proportionality of the given figure? Homework Equations The Attempt at a Solution
20. ### Rojectile equations

Homework Statement How can you solve this? I have no idea, anything. There's a clue that it cannot be solved by the projectile equations. It can be solved using math equations. I do not know them. Homework Equations The Attempt at a Solution
21. ### Factoring methods with equations higher than second degree

Homework Statement Can someone tell what are the other factoring methods when dealing with equations higher than the second degree. The only I is the synthetic division. Aside from that, I do not know anything. I need other factoring methods so I can deal with problems that cannot be...
22. ### Kinetics of rectilinear

Homework Statement Refer to the diagram. can someone explain why is the 300lb block moves only one-half the distance of the 200lb then the acceleration and velocity also to one half. Homework Equations The Attempt at a Solution
23. ### Actual Reheat Cycle

Homework Statement Given: A reheat Rankine cycle - Steams enter the high-pressure turbine at 12.5 MPa and 550C - It leaves at 2 MPa - Steam is reheated at constant pressure to 450C before it expands in the low pressure turbine - Isentropic efficiency of turbine = 85% - Isentropic...
24. ### Integral of trigonometric functions

Homework Statement How can I integrate this: \int sin (nt) sin (n \pi t) dt This actually in the Fourier series.
25. ### How can you determine the mass flow rate

Homework Statement How can you determine the mass flow rate, given that net power output is 100 MW, of the cooling water if it enters the condenser at 20 C and leaves at 35 C. Homework Equations The Attempt at a Solution I thought that mass flow rate is the same all through...
26. ### The Fourier Series

Homework Statement f(x) = 1 0<t<1 = -1 1<t<2 How can I simplify this given that function(on the attachment). What I mean is that how can I write the function in any other way? In addition, How can I know if the function can be written in other form? How can I...
27. ### Summation with infinity

Homework Statement what is the summation of a function where n=1 to n=infinity? For example, given a function sin[(pi)nt]. Homework Equations The Attempt at a Solution I asking how I get that I do not know what should I do
28. ### Fundamental Period (graph)

Homework Statement The elements of f(t) are 1+kt and t here are 0<t<1 the other element is 1 and t here are 1<t<2. f(t+2)=f(t) prove if k is not equal to zero, the period f is 2. i know the graph of element 1 but how should I graph the other element with k. Based from the graph...
29. ### The Fundamental Period

Homework Statement The function is defined on (-infinity, +infinity) Find the fundamental period of sin(5t+\pi) Homework Equations The Attempt at a Solution f(x)=sin(5t+\pi) f(x)=f(x+2p) f(x+2p)=sin(5t+\pi+2p) f(x+2\pi/5)=sin(5t+\pi+2\pi/5) The period i got was...
30. ### What is the difference between Inertia and Interaction?

I really don't get the difference between the two. What is the difference between Inertia and Interaction? Cite examples. Homework Equations The Attempt at a Solution