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...
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?
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?
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...
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...
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
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...
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
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...
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?
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?
i found all about the drawing process. I cannot find the remaining. I searched the internet for those words. In trimming, I only found that they used trimming but no definition. In beading, it showed not the metalwork process but the other one.