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how much your earning from here

A piece of platinum has a mass of 21 g. If this platinum wereformed into a very thin sheet of thickness 0.53 mm, find the areaof the sheet. Assume that it has the same density as listed in thistable.

I got 0.184m^2 and it says wrong.. also asked o cramster and gotthe same answer.

density of platinum is 21500kg/m^3 plz helpppp

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Write a persuasive speech on why America needs more gun control

HELPPPP!!

Create a multimedia presentation about the pros and cons of using fission as an energy source. 

Write a lab report exploring the process of radioactive decay using a laboratory procedure 

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