Aluminum Definition and 282 Threads

I have a sheet of aluminum that has a mass of 0.69g, length of 10.2cm and width of 7.5cm. I need to find the volume in cm3 and the thickness in cm. What is the formula to do this? The density of aluminum is 2.699 g/cm3...do I need to use that in the formula or is that irrelevant when calculating...

During the heat treatment of Aluminum alloys, two processes: Solution and Precipitation heat treatment were used. Should the hardness increase or decrease from the original alloy after solution heat treatment? My reference text says that the material should be "soft and ductile" after...

During the heat treatment of Aluminum alloys, two processes: Solution and Precipitation heat treatment were used. Should the hardness increase or decrease from the original alloy after solution heat treatment? My reference text says that the material should be "soft and ductile" after...

Hi, I have some questions about using Aluminum as a rocket fuel with oxygen. According to my calculuations, V_ex = sqrt(2*Ed) where V_ex = exaust velocity at 100% efficiency and Ed = energy density of the propellant in J/kg. This is proportional to sqrt(T/m_w) where T is temperature and m_w is...

There was a period in the 80's when I used to notice whether someone had alumininum or wooden screen doors every time I drove past their house. In fact, I almost looked down my nose at such people and thought they were no better than pond scum (just kidding). I was going through a snooty stage...

An aluminum ring of radius 5 cm and resistance 0.003 ohms is placed around the center of a long air-core solenoid with 1000 turns per meter and a smaller radius of 3 cm. If the current in the solenoid is increasing at a constant rate of 270 A/s, what is the induced current in the ring? B=...

hello there about wat temp does ,Iron oxide, aluminum, baking soda, table salt melt? degress F please. and about how hot does a US conventional gas stove get? thanks. and aluminum foil is pure aluminum right?

I have almost my entire worksheet done but I wanted to check my answers and get some help with the final question.:smile: What is the mass of one mole of aluminum? The mass of one mole of aluminum is 26.981 grams. What is the mass of one mole of hydrogen? 1.008 g What is the...

An aluminum tube with an outside diameter of 1,000 in. will be used to support a 10-kip load. If the axial stress in the member must be limited to 30 ksi T or C, determine the wall thickness required for the tube. I used tau=shearing stress/area therefore 30(pie times 1-d)=10 but that is not...

I have a 6063 aluminun tube with a fiberglass/epoxy outer wrap. Is there an reasonably fast and effective way to chemically dissolve the aluminum tube, without seriously degrading the fiberglass outer shell? Appreciate any suggestions.

Question 1: A hole in an aluminum plate has a diameter or 1.178 cm at 23.00 degrees Celsius. (A) What is the diameter of the hole at 199.0 degrees Celsius? (B) What temperature is the diameter of the hole equal to 1.176 cm? For (A) I used the equation Change in Area = 2 * alpha * A *...

"A piece of aluminum (specific heat 910 J/kg-C) of mass 200g at 80.0 deg Celcius is dropped into a styrofoam cup filled with 100mL of water at 20.0 deg C. What are the final temperatures of the water and the aluminum?" This is what I got: I figured out the amount of heat energy transferred...

A steel sphere sits on top of an aluminum ring. The steel sphere (a (average coefficient of linear expansion) = 1.1*10^-5/C) has a diameter of 4 cm at 0 C. The aluminum ring (a = 2.4*10^-5/C) has an inside diameter of 3.9940 cm at 0 C. Closest to which temperature given will the sphere...

if used aluminum as my anode, and graphite or any other metal as my cathode. could i run a low amp current through salt water and make alminum chloride (or any other alminum product)? in other words how quickly and is it possible to produce any aluminum products with electrolysis? i was just...

Not sure if this should be here or in materials... So I am attempting to braze 2 flat pieces of aluminum I apply a copious amount of flux I believe I am heating teh metals thoroughly my braze is not flowing into any of the joints ever i have tried numerous times once I even ended up...

"2 rods of equal length (0.45m) and diameter (1.5cm) are placed end to end. one rod is aluminium, the other is brass. if a compressive force of 8400N is applied to the rods, how much does their combined length decrease?" [ans: 0.55mm) with this question, I am not sure whether its ok to find...

Does an aluminum wire have any performance disadvantages other than having to be thicker to carry the same amount of current?

A square loop is cut out of a thick sheet of aluminum. It is then placed so that the top portion is in a uniform magnetic field B, and allowed to fall under gravity. So the square is in the y-z plane, and the magnetic field is -|B|x say, for z > 0, and the magnetic field is 0 below that. This...

An aluminum wire is hung between two towers and has a length of 175 m. A current of 125 A exists in the wire, and the potential difference between the ends of the wire is 0.300 V. The density of aluminum is 2700 kg/m3. Find the mass of the wire I have no idea how to do this :'(

im working on a lenz's law experiment where i am making an aluminum ring levitate on an iron pole, but I am not sure of the theory behind how it works, and what i should be writing about. any suggestions welcome.

Why is Al3 a conductor and Aluminum Trioxide is not?

This site made me laugh. http://zapatopi.net/afdb.html

There is a maximum height of a uniform vertical column made of any material that can support itself without breaking, and it is independent of the cross-sectional area. (a) Calculate this height for aluminum (density 2.7 103 kg/m3). (b) Calculate this height for granite (density 2.7 103...

I saw this arcticle on popular science's web site: http://www.popsci.com/popsci/how2/article/0,20967,693558,00.html it tells about a way using mercury paste to make aluminum rust, very fast and crumble to dust. as you can see in their picture, it apearently is true, and as they explain in...

Problem 2. Liquid nitrogen, which has a boiling point of 77 K, is commonly used to cool substances to low temperatures. How much energy must be removed from 1.4 kg of gaseous nitrogen at 77 K for it to completely liquefy? Assume the latent heat of liquid nitrogen is 2.01 *10^5 J/kg Answer...

An annular ring of aluminum is cut from an aluminum like attached. When the ring is heated, 1)the hole decreases in diameter 2)the area of the hole expands the same percent as any area of the aluminum 3)the area of the hole expands a greater percent than any area of the aluminum...

Aluminum wiring has sometimes been used instead of copper for economy. According to the National Electrical Code, the maximum allowable current for 12-gauge copper wire with rubber insulation is 20A. What should be the maximum allowable current in a 12-gauge aluminum wire if the power per unit...

Let's assume for the moment that beyond any doubt, global warming is real. Does this offer a viable solution to reduce global warming? Could this create another environmental disaster by loading the biosphere with aluminum oxide [apparently the preferred choice to be used in jet fuel]. The...

8. [CJ6 14.P.001.] A mass of 135 g of an element is known to contain 30.1 1023 atoms. What is the element? carbon hydrogen oxyden aluminum This is the question on my Physics practice test for my exam tomorrow. i don't know where to even begin with this one. we haven't really gone over...

I need help with coming up with a formula for this question: A hollow aluminum cylinder 18.0 cm deep has an internal capacity of 2.000 L at 18 C. It is completely filled with turpentine and then warmed to 84 C. How much turpentine overflows? If the cylinder is then cooled back to 18 C, how...

How can I calculate BTU value generated from 1 inch copper pipe with the length of 1 foot through which 176F hot water is passing?

For my project, I am creating a pure aluminum model with styro foam balls and toothpicks. I know this structure is a "face-centered cubic". However, I don't know the bonding angles and what kind of bonding shape (tetrahedral, octahedral ...), I need the information for the write-up. Can someone...