Water

a.) A rain gauge (A) has an opening at the top with an area of 20 cm2. A brief, intense rainstorm dumps 10 cm (0.1 m) of rain in the water directly into the rain gauge. How much water (volume) accumulates in the rain gauge (cylinder) during this rainstorm? Show your work. Make sure you have included the proper units for volume. (2 points)
b.) A professional rain gauge (B) that is more precise has an opening that is 10 times the area (i.e. 200 cm2). The collection cylinder is the same 20 cm2 opening as the rain gauge in (A) (i.e. 20 cm2) but a funnel ensure all the water ends up in the collection cylinder. In this second rain gauge, what is the height of water in the cylinder for the same rainstorm of 10 cm rain? (2 points)
c.) Annual rainfall in New England including the Quabbin Watershed is 130 cm/yr. The Quabbin Watershed is 600 km2 in area. How much water due to rain (which drains the entire watershed) flows into the Quabbin Reservoir each year? Please assume all the rainwater in the Quabbin Watershed ends up in the Quabbin Reservoir. Show your work. Hint: It might help to draw a picture of this annual rain on the land. Hint 2: Make sure your units are converted to be consistent. (3 points)
d.) If the Quabbin Reservoir is 15 x 1011 liters in volume, what is the residence time with respect to rain of the Quabbin Reservoir? Please first set up the equation for residence time in words, then attempt to out in the correct numbers to calculate your answer. (3 points)