
math
Surfact of A lake is 31 feet above the surface of B lake. B lake is half as deep as A Lake and the bottum of the B lake is 8 feet below the bottom of A Lake. how deep is each lake?
asked by someone on September 30, 2008 
Social Studies
Lake Michigan and Lake Huron have the same surface elevation of ___ feet 577? The ___ Channel connects Lake Huron Lake St Clair and Lake Erie South? Niagara Falls is between Lake Erie and Lake __ Ontario? Lake Ontario is connected to the St Lawrence Seaway
asked by Jerald on November 12, 2012 
algebra
simplify. 3  2(4  7) ÷ 9 i don't know what to do after i subtract 4 and 7 which is 3 then multiply 2 which is 6 then i don't know what to do afterwards, i know pemdas so 6 divided by 9 cannot be so please help on that. the integers from 3 to +3 can
asked by anon on August 27, 2015 
trigonometry
The side of a lake has a uniform angle of elevation of 15 degrees 30 feet. How far up the side of the lake does the water rise if the height of the lake increases by 7.3 feet during flood season.
asked by Charlie on October 13, 2011 
algebra 2
Boiling Lake is a small lake on the island of Dominica. The water temperature of the lake is between 180*F and 197*F. Write a compound inequality for this temperature range. [Graph the inequality.]
asked by hope on February 21, 2010 
honors geometry
You and a group of friends are participating in a ropes course. One of the obstacles involves doing a Tarzan Swing into a lake. A rope swing is at the edge of the lake. It is attached to a platform arm that overhangs the lake as shown in the diagram below.
asked by bryce b on January 18, 2016 
math
Lake superiorhas a depth of 1.333 thousand feet.there are 5,280 feet in one mile. How deep is Lake Superior?
asked by tt on November 5, 2012 
algerba
How to figure out the temperature of a lake using x for the feet or the Depth and for the degrees Celsius, use (3900x+1000) /(3x^2+100) with the answer of the degrees Celsius being 6.74 looking like 6.74=(3900x+1000)/(3x^2+100) i need the depth i have
asked by beckylynn on May 18, 2014 
math
East Battle Lake in Minnesota covers an area of about 1950 acres or 8.5X10^7 square feet and its average depth is about 3.2x10^1 feet. a. Estimate the cubic feet of water in the lake. (hint: Volume=area x average depth.) b. One cubic foot of water equals
asked by nikkisopretti on February 4, 2013 
math
lake superior has a maximum depth of 1.333 thousand feet. there are 5,280 feet in one mile. how deep is lake superior in miles? round to the nearest hundredth if necessary. explain the answer
asked by angel on January 14, 2015 
Math
I need to write the specified ratin as a simplified fraction. A certai lake is 1100 ft deep. A nearby lake is 300 feet deep. Write the ratio of te fist lake's depth to the second lake's depth.
asked by Ray on November 17, 2010 
math
A developer plans to build houses around lake okeebele. Most of his customers want to buy about 100 feet of lakefront. How many lots can the developer build around the lake? scale 100 feet=10,000 square feet
asked by Brian on April 5, 2010 
Math
A developer plans to build houses around lake okeebele. Most of his customers want to buy about 100 feet of lakefront. How many lots can the developer build around the lake? scale 100 feet=10,000 square feet
asked by Tasha on September 18, 2012 
Math
A boy throws a stone into a lake from a 74 foot high wall. The chart gives the horizontal distance, x (in feet), the rock has traveled from Jesse and the height, y (in feet) of the rock above the lake. Distance, x: (14) (24) (41) (55) Height, y: (86.43)
asked by Blake on December 30, 2012 
MTH/208
East Battle Lake in Minnesota covers an area of about 1950 acres or 8.5X10^7 square feet and its average depth is about 3.2x10^1 feet. a. Estimate the cubic feet of water in the lake. (hint: Volume=area x average depth.) b. One cubic foot of water equals
asked by Juana on May 1, 2011 
science grade 5
how is heat related to temperature? Temperature tells us the DEGREE of heat; i.e., how hot is something. A temperature of 98.6 F is normal body temperature. A hot day is when the temperature is 95 degrees F. A cold day is when it is freezing outside. But
asked by kathy on November 15, 2006 
social studies
what are the five great lakes You can find that at the site below: http://worldatlas.com/webimage/countrys/namerica/greatlk.htm they are lake superior lake michagan lake huron lake eria lake ontario
asked by A Friend on October 3, 2006 
math
In January, the depth of a lake was 802 feet. In August, the depth of the lake was 721.8 feet. What is the percentage decrease of the depth of the lake from January to August? A. 90% B.10% C.11% D.12%
asked by sans on March 1, 2019 
Physics
At a nuclear power plant, water at 6degress Celius from a nearby lake is used in a heat exchange to condense spent steam at a temperature of 115 degees C to water at 80 degrees C. If the cooling water returns to the lake at a temperature of 18 degrees C,
asked by alex on April 20, 2017 
Math Help!!!
Russell Grossman is training for the Olympics. He wants to know the distance across lake royal, so he can write in his training logbook how far he rows each day. If from one point on the shore to one side of the lake is 13 km and from the same point to
asked by Anonymous on November 19, 2014 
Math
From a boat on the lake, the angle of elevation to the top of a cliff is 26°35'. If the base of the cliff is 85 feet from the boat, how high is the cliff (to the nearest foot)? A. 56 feet B. 43 feet C. 53 feet D. 46 feet I HAVE BEEN WORKING ON THIS
asked by Ashley on October 23, 2012 
Physics
The sun outputs 1380 W/m^2 of energy at the earth's surface. A small rectangular las has the following dimensions: 1km wide, 1.4km long, and 300m deep A) Calculate the thermal energy added to the lake if exposed to 12h of direct sunlight. B) calculate the
asked by Sandara on January 2, 2014 
math
the nufone communications company must run a telephone line between two poles at opposite ends of a lake. the length and width are 75 feet and 30 feet. what is the distance between the two poles to the nearest foot? The lake is rectangular? Where on the
asked by jackie on March 20, 2007 
physics
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. A diver releases an air bubble of volume 4.0cm3cm^3 from a depth of 16mm below the surface of a lake, where the temperature is 8.0∘C. What is the volume
asked by Rich on December 6, 2014 
Chemistry
A geologist removes a sample of water from a lake in Nevada where the water level has been slowly dropping over time. The sample is found to be 0.02M in borax. The lake is circular in shape and is currently 500 meters in diameter and 50 meters deep. Using
asked by Jematormal91 on April 30, 2012 
algerba
How to figure out the temperature of a lake using x for the feet or the Depth and for the degrees Celsius use (3900x+1000)/(3x^2+100) with the answer of the degrees celsius being 8.44 looking like 8.44=(3900x+1000)/(3x^2+100) i need the depth
asked by beckylynn on May 18, 2014 
Algebra
The surface of the Grand Lake is at an elevation of 648 feet. During the current drought, the water level is dropping at a rate of 3 inches per day. If this trend continues, write an equation that gives the elevation in feet of the surface of Grand Lake
asked by Jacob on September 14, 2016 
Math
At 6:00 A.M. the temperature was 33Â°F. By noon the temperature had increased by 10Â°F and by 3:00 P.M. it had increased another 12Â°F. If at 10:00 P.M. the temperature had decreased by 15Â°F, how much does the temperature need to rise or fall to
asked by Maddie on February 20, 2018 
Physics
You like to swim at a nearby lake. On one side of the lake is a cliff, and the top of the cliff is 36m above the surface of the lake. You dive off the cliff doing somersaults so as to have an angular speed of 6rev/min. How many revolutions do you make
asked by Amanda on March 27, 2012 
Physics
A 298.0 kg block of ice at 0 C is placed in a large lake. The temperature of the lake is just slightly higher than 0 C, and the ice melts. What is the entropy change of the ice (in kJ/K)? What is the entropy change of the lake (in kJ/K)? What is the
asked by Kimmy on February 3, 2014 
geography
Will you please check my answers? 1. The largest lake in the world is located near the border of Asia and Europe. What is its name? Caspian Sea 2. What is the name of the country that shares the Iberian Peninsula with Spain? Portugal 3. Name the Great
asked by Reed on September 24, 2012 
Math
Sarah throws rocks into a quarry lake from the top of a 67 foot high wall. The chart gives the horizontal distance, x (in feet), the rock has travled from Sarah and the height, y (in feet), of the rock above the lake. The chart is: distance, x:9 19
asked by Annie on December 8, 2011 
algebra1
Melissa wants to figure out how many fish live in a small lake by her house .She ccatces 15 fish and tags the (safely).Shethen outs thoes fish back in the lake .Then next day ,she catches 28 fish .of those 28 fish, 3 of them have the tags on them.About how
asked by Victor on August 22, 2015 
Algebra Unit Analysis
I am doing Unit Analysis and I can not fugure out how to set the promble up on these 3. I just need to know how to set it up I can figure out the answer. 1.How many cubic meters are there in a cubic mile? (1 mi = 1609.344 m.) 2.My 1967 Encyclopædia
asked by Shawn L on April 30, 2011 
physics
At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how
asked by Riana on March 31, 2013 
PHYSICS
At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how
asked by Riana on March 31, 2013 
PHYSICS help please!!!!!!!!!!
At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how
asked by Riana on March 31, 2013 
physics
At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how
asked by Riana on March 31, 2013 
Math
Loon lake has a "killer plant" problem similar to Ghost Lake. Currently, 5000 square feet of the lake is covered with the plant, The area covered is growing by a factor of 1.5 each year. Complete the table to show area covered by the plant for the next 5
asked by Crystal on March 10, 2014 
chemistry
Oops I left a part of the question out: 2. Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes, leading to irreversible inactivity of these enzymes. If the amount of mercury in a
asked by Brooke on September 23, 2014 
Geography
Did I answer these correctly? Q. Continent southeast of North America A. South America,Africa Q.How far is Panama City, Panama from San Salvador, El Salvador? A. 659 miles Q. Most of Cuba has an elevation of A. 0 to 500 feet above sea level Q. The
asked by G on December 7, 2016 
Math
In the year 1997, the surface elevation of Lake Powell was 3887 feet above sea level. In the year 2001, the surface elevation of Lake Powell was 3577.4 feet above sea level. The surface elevation of Lake Powell is at a rate of
asked by Cindy on April 8, 2017 
SS/WGeogrophy
which lake does the equator pass through: Lake Victoria,Lake Malawi,or lake Chad?
asked by rosmeris on January 8, 2009 
physics
An airplane wants to drop a load of fish inot a small lake in the mountains. The plane is flying at its min speed 40 m/s, and is 50 meters above the surface of the lake. a.) Where relative to the lake should the plane be when the fish are dropped so that
asked by Jackie on September 16, 2007 
Math
A person standing near the edge of a cliff 120 feet above a lake throws a rock upward with an initial speed of 40 feet per second. The height of the rock above the lake at the bottom of the cliff is a function of time and is described by the function H(t)
asked by Tina on July 16, 2011 
Physics
A 200 kg block of ice at 0.0c is placed in a large lake the temperature of the lake is just slightly higher than 0 C and the ice melts very slowly. i) what is the entropy change of ice ii) What is the entropy change of the lake iii) What is the entropy
asked by Stan on March 7, 2018 
History8
Which of the following most affects the size of the Great Salt Lake? A.the salt in the lake B. the region’s climate C. human modifications of the lake D. the minerals in the soil under the lake
asked by mathidislikeperson on January 25, 2014 
environmental engineering
A lake receives 8 m3/s of inflow containing 0.3 mol/m3 of a chemical. The chemical reacts with a first order rate constant of 0.01 h1. The outflow from the lake is also 8 m3/s. Assume there was no chemical in the lake at the beginning and volume of the
asked by Sam on February 10, 2016 
Social Studies
Lake Huron is the northernmost Great Lake False? Lake Ontario is the closest Great lake to ottawa canada True?
asked by Jerald on November 12, 2012 
math
1. A submarine was suituated 800 feet below sea level. If it ascends 250 feet, what is it new position 2. Metal mercury at room temperature is a liquid. Its melting point is 39°C. The freezing point of alcohol is114°C. How much warmer is the melting
asked by tsunayoshi on July 31, 2014 
Algebra
If the temperature on the ground is 70 degrees fernhet, then the temperature at A feet above the ground can be found from the expression 0.0035A + 70. I need to find the temperature at the following altitudes a. 8,000 feet b. 12,000 feet c. 24,000 feet I
asked by Angel on June 24, 2005 
physical science
If 500 kg of water at 200 degrees F is poured into a lake that is 50.0 degrees F, how much heat is added to the lake? Joules added = mass x specific heat water x delta T. mass = 500 kg Look up specific heat water in cal/kg delt T is 200. Solve for Joules
asked by jan on June 22, 2007 
6th grade math
In general, the air temperature decreases 12F for every 4000 feet increase in altitude. If a hiker climbs 3000 feet, by how much can she expect the temperature to decrease?
asked by Kate on December 4, 2011 
science help pls pls
Look at the position of Location 1, Location 2, and Location 3 in this picture. Simple diagram of a lake represented by a wavy circle. The circle is labeled 'Lake,' and there are three points outside of the lake: 'Location 1' is to the northeast of the
asked by Oscar on March 22, 2016 
Chemistry
A ship carrying ice over a lake breaks and spills its cargo.If 3650.0 g of ice at 0.00 celcius are released into the 15456200 g of water in the lake at 17.0 celcius, what will the final temperature be? (heat of fusion=79.0 cal) and i got the answer of
asked by Kat on May 3, 2011 
Chemistry
320.0 gallons of 15 M nitric acid were added to a lake. The initial pH p the lake was 6.30 and the final pH was 4.60. What is the volume of the lake?
asked by Meg on April 3, 2016 
chemistry
600 gallons of 15 M nitric acid were added to a lake. The initial pH of the lake was 5.90 and the final pH was 3.70. What is the volume of the lake?
asked by mar on March 13, 2015 
math
a company want to lay cable across a lake. to find the lengh of the lake, they madethe measurements 180ft and 150ft. what is the length of the lake?
asked by sue on May 15, 2012 
Math
A solid is made up of two rectangular prisms how would I find the surface area of the solid? The diagram shows 3 feet on top, 6 feet on the left side, 7 feet on the bottom, 2 feet and 4 feet to the right Our teacher gave us the answer of 156 then told us
asked by Josh on April 28, 2015 
science.
In powder mills park there is a lake called a kettle lake. describe how this lake was formed.
asked by Anonymous on March 5, 2009 
math
Shelly sews a blanket that has an area of 170 square feet. it has 30 square blocks, each the same size. What is the approximate length of each side of a block. a. 1 foot b. 2 feet c. 3 feet d. 4 feet I doubled checked and the problem is correct. I just
asked by Larry on October 30, 2012 
Math
I cannot figure this one out. Please help. The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the
asked by Janie on November 14, 2018 
Physics
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely?
asked by Tracy on March 4, 2012 
math
a man jumps off of a cliff 12 feet above a lake. His jump takes him 4 3/4 feet under water. How far did his jump take him? I got 8 3/4
asked by Corben on October 24, 2016 
math
A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. How deep is the lake to the nearest foot?
asked by jamie on May 22, 2014 
HELP!!!! MATH
A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. How deep is the lake to the nearest foot?
asked by jamie on May 22, 2014 
Math
Several cows from a Caribou Herd took 4 days longer to travel 70km to Forde Lake, than it took them to travel 60km north beyond forde lake.They averaged 5km/h less before Forde lake because the foraging was better. What was their average speed for the part
asked by Bethany on October 18, 2014 
Alegabra
Russell Gossman is training for the Olympics. He wants to know the distance across Lake Royal, so he can write in his training logbook how far he rows each day. If from one point on the shore to one side of the lake is 13 km and from the same point to
asked by Secret on November 13, 2012 
Math
The air temperature decreases by about 1 degree Fahrenheit for each 300 feet of altitude. a) Find a function T(x) for the temperature at an altitude of x feet if the sealevel temperature is 45∘F. (b) Find T(1000). [Round to two decimals] I considered
asked by Rosie on November 27, 2015 
Math
who is the basic with 3 feet and the length 6 feet total perimeter 18 feet how do you figure out the area
asked by Isabella Steinmetz on June 13, 2016 
algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by Jesse on October 25, 2014 
Physics
A swimmer has 8.20 x 10^4 m^3 of air in his lungs when he dives into a lake. Assuming the pressure of the air is 95 percent of the external pressure at all times, what is the volume of the air at a depth of 10.0 m? Assume that the atmospheric pressure at
asked by Jim on April 1, 2008 
Calculus
The figure at the right consists of a rectangle topped by an isosceles right triangle. The area of the figure is 200 sq. feet. The minimum perimeter of the figure is ___ft.
asked by Anonomous on February 16, 2014 
Physics
At a height of 15 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.150 s later. The air and water temperatures are 20°C. How deep is the lake?
asked by Kristina on February 11, 2011 
MATH
from 6:30 am to 4:30 pm on Monday, the temperature rose 12 degreesC. From 4:30 pm on Monday to 5:45 am on Tuesday, the temperature dropped 7 degreesC. The temperature at 5:45 am on Tuesday was 2 degreesC. What was the temperature at 6:30 am on Monday? plz
asked by Bro on February 24, 2015 
physics
A snow maker at a resort pumps 260 kg of lake water per minute and sprays it into the air above a ski run. The water droplets freeze in the air and fall to the ground, forming a layer of snow. If all of the water pumped into the air turns to snow, and the
asked by Anonymous on November 25, 2013 
AP Physics
At a height of 5 meters above the surface of a freshwater lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.140 s later. The air and water temperatures are 20°C. How deep is the lake?
asked by Alan on February 9, 2011 
Statistics
During September, the average temperature of Laurel Lake is 64.2º and the standard deviation is 3.2º. Assume the variable is normally distributed. For a randomly selected day, find the probability that the temperature will be a. Above 62º b. Below 67º
asked by Penny on March 16, 2013 
Physics
A primitive diving bell consists of a cylindrical tank with one end open and one end closed. The tank is lowered into a freshwater lake, open end downward. Water rises into the tank, compressing the trapped air, whose temperature remains constant during
asked by Jason on November 11, 2014 
Physics
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely? Each gram of water will
asked by Tracy on March 6, 2012 
Physicsis this correct?
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely? Each gram of water will
asked by Tracy on March 11, 2012 
algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by nate on October 22, 2014 
algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by nate on October 23, 2014 
college algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by Lala on October 22, 2014 
algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by Cathy on October 24, 2014 
Math
Sadiq dropped his watch into a lake. The depth of the lake is 5 meters. Sadiq can dive down towards the bottom of the lake at a speed of 2 meters per second, but can swim upwards at a rate of 1 meter per second. How long will it take Sadiq to get his watch
asked by Sadiq on September 7, 2014 
Physics
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely? Each gram of water will
asked by Tracy on March 12, 2012 
Physics
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely? Each gram of water will
asked by Tracy on March 5, 2012 
chemistry
If the amount of mercury in a polluted lake is 0.40 ug/mL, what is the total mass of mercury in the lake? (The lake has a surface area of 100 mi squared and an average depth of 25 ft).
asked by Elle on September 12, 2011 
Science
Sometimes, when you sit by a lake in a forest, you can see perfect images of the hills and trees in the lake. Other times, when you are sitting beside the same lake, you cannot see any images in the water. Explain the difference between these two
asked by Nathan on June 5, 2018 
math
If P0 > c (which implies that −1 < a < 0), then the logistics function P(t) = c 1 + ae−bt decreases as t increases. Biologists often use this type of logistic function to model populations that decrease over time. See the following figure. Apply this
asked by Anonymous on September 18, 2014 
Trigonometry
If P0 > c (which implies that −1 < a < 0), then the logistics function P(t) = c 1 + ae−bt decreases as t increases. Biologists often use this type of logistic function to model populations that decrease over time. See the following figure. Apply this
asked by Anonymous on September 18, 2014 
physics
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo 2.20 s after shouting. How long (in meters) is the lake?
asked by kassy on December 5, 2016 
geometry
In the figure shown, NK and ML are parallel, JN=10 feet, NK=14 feet, JL=22 feet, and ML=24. Find KL.
asked by abc on February 3, 2011 
calculus
An artificially created lake is bordered on one side by a straight dam. The shape of the lake surface is that of a region in the xyplane bounded by the graphs of 2y=16x^2 and x+2y=4. Find the area of the surface of the lake.
asked by Akki on February 17, 2015 
calculus
you stand on the shore of a circular lake and you wish to reach the exact opposite your current position. you can swim 20 feet per minute and run 50 feet per minute. what path should you take to reach your destination as quickly as possible?
asked by Anonymous on November 12, 2013 
Chemstry
Mercury concentration in a polluted lake is 0.0125 micrograms/L. What is the total mass in kilograms of mercury in the lake if the lake is approximately circular witha diameter of 10 miles and an average depth of 50 ft.?
asked by Gabrielle on August 31, 2011 
MATH
The tip of a plant was 6cm above a lake but a sudden wind forced the plant to move 10 cm fat from its original position and then it submerged into the lake. Find the depth of the lake upto which it was sinking. Please help!!!!!!!!!!
asked by A GOODSTUDENT on August 29, 2016 
Physics
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at 3 C. How much energy would the lake need to absorb from the Sun to cause it to evaporate completely? Each gram of water will
asked by Tracy on March 12, 2012 
Calculus  HELP URGENT PLEASE
Consider a lake of constant volume 12200 km^3, which at time t contains an amount y(t) tons of pollutant evenly distributed throughout the lake with a concentration y(t)/12200 tons/km^3. assume that fresh water enters the lake at a rate of 67.1 km^3/yr,
asked by Ashley on August 20, 2015
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