1.)You have a rock that appears to be pure copper. Explain in detail how you would determine if it is pure copper.2.) Iron has a density of 7.86 g/cm3. It is solid in sheets 2.0 cm thick and 120.0 cm wide. What length of a sheet must you buy to have a mass of 5000 grams?I dont get these at all.
I'm not sure how to answer the first (I don't think that examine it under X-ray fluorescence is what your teacher is looking for!), but I can help on the second. 1. Calculate the volume occupied by 5000 gtams of iron: volume weight/density volume (5000 g)/(7.86 g/cm^3) 636.1 cm^3 2. volume (length)*(width)*(thickness) Rearrange this equation to solve for length: length (volume)/((width)*(thickness)) 3. Plug in the numbers and solve for the length: length (volume)/((width)*(thickness)) (636.1 cm^3)/((120.0 cm)*(2.0 cm)) length 2.65 cm
the first question refers to not just Archimedes' principle but also to the story behind it. determine the mass of the rock via scale and weight to mass calculation submerge the rock in a known volume of water and measure the displacement of water (volume) refer to the density of Cu listed on online, etc. Calculate density for the sample (mass/volume) calculate percent error and round for sig figs % error needs to be 0 or very close (meaning that there was human error) the second question's equation is as follows: (volume)(density) (mass) math time (without units): [(2.0)(120.0) L ](7.86) 5000 1886.4 L 5000 L 2.65055 L 2.7 *sig figs states 2 due to the value of thickness
1) you could look up the density of copper and measure its mass, then submerge it in water (the Archimedian method) and see how much volume it displaces and compare the values you get. Or you could look up the boiling point of pure copper and burn it, but since it's a metal this is not ideal because it would have a high melting point. densitymass/volume. 2)area of one sheet is 2.0(120)xcm^3. Use dm/v. therefore vm/d. solve for volume and set it equal to 2(120)x then solve for x (because volume is 3 dimensional and needs cm^3)
Anti freeze will not ruin your seals but what it will do is make the valves which shift the clutch packs stick and if there is enough in there it will make the clutches sticky and chatter. Aamco is not a place I would trust they say they rebuild transmissions but they only replace what is necessary to save them money. Jasper rebuilds transmissions I've been to the plant for a tour. Something else to think about is that the trans cooler is in the radiator and the pressure of the trans fluid going through the cooler is a lot more then the coolant pressure in the radiator so you would have trans fluid in the coolant before you would get anti freeze in the trans. You were checking the fluid level, has it moved?
If your car has a engine cooler on the radiator u have 4 lines connected. If it doesn't have the engine cooler u have 2 lines connected which means those are only transmission lines which one of them could have a leak in it around the gasket where it connects to the bottom right of the radiator if ur car is front wheel drive, on the bottom left if its rear wheel drive. Go to a speedee or some sort of fast lube place and have them to check for leaks in the lines. nine times out of ten it is not your radiator that is shot, because radiator don't just suck transmission fluid out of the lines.i'm leaning more toward the leak around the gaskets.let me know
