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InterviewSolution
| 1. |
If 1200 atoms decay with a half life of 2 years, how many are remaining after 8 years. |
| Answer» <html><body><p><img align="absmiddle" alt="[latex]P_2 = \frac{13.0 \;\text{psi} \times 15.0 \;\rule[0.5ex]{1.2em}{0.1ex}\hspace{-1.2em}\text{mL}}{7.5 \;\rule[0.5ex]{1.2em}{0.1ex}\hspace{-1.2em}\text{mL}} = 26 \;\text{psi}[/latex]" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%3C%2Fp%3E%3Cp%3E%5Blatex%5DP_2%20%3D%20%5Cfrac%7B13.0%20%5C%3B%5Ctext%7Bpsi%7D%20%5Ctimes%2015.0%20%5C%3B%5Crule%5B0.5ex%5D%7B1.2em%7D%7B0.1ex%7D%5Chspace%7B-1.2em%7D%5Ctext%7BmL%7D%7D%7B7.5%20%5C%3B%5Crule%5B0.5ex%5D%7B1.2em%7D%7B0.1ex%7D%5Chspace%7B-1.2em%7D%5Ctext%7BmL%7D%7D%20%3D%2026%20%5C%3B%5Ctext%7Bpsi%7D%5B%2Flatex%5D%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3E" title="[latex]P_2 = \frac{13.0 \;\text{psi} \times 15.0 \;\rule[0.5ex]{1.2em}{0.1ex}\hspace{-1.2em}\text{mL}}{7.5 \;\rule[0.5ex]{1.2em}{0.1ex}\hspace{-1.2em}\text{mL}} = 26 \;\text{psi}[/latex]"/></p></body></html> | |