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Question:

density problem need help! please?

The density of lead is 11.34 g/cm3 and the density of aluminum is 2.69 g/cm3Find the radius of lead and aluminum spheres each having a mass of 20 kg(Round your answers to two decimal places.)a) lead in cm b) aluminum in cm

Answer:

should be alrightif the old windows are wood framed they might rot a little faster due to the traped moisture in betweenand they could ice up and reduce visability
Mass is density times volumeYou are given the respective densities, solve for the volume you need, then use the formula for the volume of a sphere to determine the radius.
If they are in good condition then there is no need to remove them, so long as they do not cause a problem with the new windowsYou can also consider changing the storm windows and keeping the windows that are there, this can often times be less expensive.
You really can't because the replacement window sticks out past where the storm window isyou'd have to remove the storm windows and build out the frame where the storm window is placedI am a contractor and have installed hundreds of replacement windowsSo, on my house I tried the same thingI removed the storms, built out the frame with parting stop, installed the replacement windows and put the storm windows backI ended up removing the storm windows and scrapping themThe extra benefit was minimal, they were difficult to use and they just plain looked stupidI think your in for more trouble than its worthJust make sure you use a good grade replacement windowI buy mine for building supply companies and not Menard'sThey usually have specials where you can get free low-e glassHope this helps!

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