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A teacher measure the level of radioactivity from a pure sample of radioactive substance using a Geiger counter. When the radioactivity was measured again a few months later, the level of radioactivity had increased.

Explain how it is possible for this to occur.

Name as many as you can! I really need it.

x^3 + xy^2 = x^2y + y^3

(a+b+c)(ab+bc+ca)-abc= (a+b)(b+c)(c+a)

Thanks!

Well you can't expect the government letting foriegn companies mine from Australia and not pay tax on the natural resources they find, so how much do they pay?

im kinda argueing with my father on which one to use for our fish pond he wants to save money and just use normal tile waterproofing instead of pond sealer specifically for ponds. can someone give me some reasons why we must use pond sealer? eg. fish will die too high PH, or murky water, etc.

HELP!

are there standard features of men or women jeans? eg. longer fly or like an elastic waist strip.

i have no idea how i should do this because she's always been going on about how she 'has a feeling i wanted to dump her and she's been down about it all day ...' she made me promise to her that we'd always be friends so i hope that will happen. she's really sweet and all but i think the fire's gone. She's a great girl, and i think that if i just kept it going for about half a year she would dump me (i've tried this before), but i think i want to move on.

wat are the positive and negatve effects of a significant place.

wat positive impact would the statue of liberity do to the local community and the entire country in terms of tourism, employment, income, infrastructure, access and other areas.

also wat are the negative enviromental, social and cultural would the statue of liberty do.

the proposed and remedy to inplement the situation

Eg. It cAn bE SeEn cLeArLy tHaT, iT CaN Be cOnClUsIvElY StAtEd tHaT...

i used on my sisters account and went on a website now i forgot it and i want to access the website can anyone help me and tell me which folder to check in.

i dont get this is this some kind of formula can some one explain it to me please?

can u plz teach me how to read a weather map, and what each of the round lines represent

i want to noe what is needes to be changed when u convert a car to using lpg, also what are the parts required.

can you please write me around 70 words about the mentor in the Hobbit.

how does a magnetic variation work and also wat do u call a house pointing north

how much of the world's uranium does australia have and also which contry has the most fuel and how much percent does it have in caparison to the world.