February 2nd, 2012, 01:19 PM  #1 
Newbie Joined: Feb 2012 Posts: 1 Thanks: 0  Hydrology problems question
Good afternoon all, I am taking a Hydrology class for my major and am having trouble with two problems, which happen to be the easiest ones, I just cant figure it out Here's the first problem: The only swimming pool at El Cheapo Motel is outdoors. It is 5.0m wide and 12m long. If the weekly evaporation is 2.35 inches, how many gallons of water must be added to the pool if it does not rain? The other problem is this: A 500 mL bottle of spring water, which is at room temperature of 25 deg. cel., is poured over 120g of ice that is 8 deg. cel. What will be the final temperature of the water when all the ice has melted, assuming that it is in an insulated container that does not change temperature. Any help would be appreciated! 
February 2nd, 2012, 08:48 PM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,131 Thanks: 432 Math Focus: Calculus/ODEs  Re: Hydrology problems question
For the first problem, this seems to be mostly a problem of units conversion and minding significant digits! Since a gallon is 231 in³, let's convert all units to inches. We are told that through evaporation, the pool's depth decreases by ?d = 2.35 in. Since the pool is rectangular, the area A of the surface is: Thus, the volume V lost to evaporation is: For the second problem, what principles and equations are you given to work with? 

Tags 
hydrology, problems, question 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Problems with a Question  MathHatesMe  Calculus  4  November 26th, 2013 05:44 PM 
Hydrology  Average groundwater flow velocity  sayzteff  Physics  0  November 24th, 2012 08:13 AM 
Log problems and word problems help  thenewkid77  Algebra  1  March 11th, 2010 07:27 AM 
Hydrology problems question  futuregeo  Algebra  0  January 1st, 1970 12:00 AM 
Problems with a Question  MathHatesMe  Algebra  1  January 1st, 1970 12:00 AM 