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Massiel
Questions (10)
The half live of Iodine-131 is 8 days. if you started out with 40 mg sample of iodine-131, then what would be the mass of the
2 answers
690 views
I'm struggling solving this separable differential equations: (du/dv) = ((uv+u)/(uv+v)) I multiplied both sides by dv to get on
0 answers
457 views
A sphere is fired downwards into a medium with an initial speed of 40 .
Part A If it experiences a deceleration of , where is in
0 answers
645 views
A sound power level reading of 127 dB was taken near a construction site
where chippers were being used. When all but one of the
0 answers
472 views
A sound power level reading of 127 dB was taken near a construction site
where chippers were being used. When all but one of the
2 answers
1,675 views
If in August 1911 Mme. Curie prepared an international standard containing
20.00 mg of RaCl2, what will the radium content of
2 answers
452 views
The activation energy for the reaction in which CO2 decomposes to CO and a free radical oxygen atom, O, has activation energy of
3 answers
1,332 views
One reaction that destroys O3 molecules in the stratosphere is NO + O3 NO2 + O2
When this reaction was studied in the
2 answers
896 views
If the BOD5 of a waste is 220 mg/L and the ultimate BOD is 320 mg/L, what
is the rate constant?
1 answer
1,112 views
Ottawa’s anaerobic digester produces 13 m^3/day of sludge with a suspended solids concentration of 7.8%. What volume of sludge
0 answers
683 views
Answers (4)
My daughter had the same problem today... The probability is 1/3... If its a fair game then all of the factors have equal opportunity to occur.
thanks!
Thanks!
I got it!!! the answer is 4.6x10^-6
