1.At an interest rate of 15% per year, an investment of $100,000 one year ago is equivlent to how much now?
2.If the discharge from a 90 degree V-notch weir fills a 20 L vessel in 54 seconds and produces a stage of 30mm upstream of the weir crest, what would the weir coefficient be ?
3.If a source of groundwater gets contaminated with a DNAPL and another one gets contaminated with a LNAPL, which one will be harder to remediate and why ?