- Are there any insects that can fly through fan blades?

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Is human excrement being wasted as a potential fertilizer? What is the final temp (in oC) when 20.0 g of water at 25°C is mixed with 30.0 g of water at 80.°C? Specific heat of water is 4.184 J/goC.? I have 36 purple stones. Under florescent lights stones turned violet/bluish on a 1921 Liberty $20 gold piece, what r they? If a and b are positive integers such that gcd(a,b)=210, lcm[a,b]=210^3, and a** **Pb(NO3)2 + KI ->?