Thursday

April 17, 2014

April 17, 2014

Number of results: 76,598

**Math**

What is the distance on the ground between 2 posts when the posts are attached to a platform that is 6 feet square and attached with 15 degree brackets? The posts are either 10 foot or 12 foot. Please answer for both.
*Sunday, April 21, 2013 at 7:48am by Gina*

**the lagrange multiplier equation**

A cylindrical oil-storage tank is to be constructed for which the following costs apply: cost per square meter metal for sides $30.00 (cost per square meter) combined costs of concrete base and metal bottom $37.50(cost per square meter) top 7.50 (cost per square meter) The ...
*Monday, November 15, 2010 at 11:48am by sunny*

**Science**

I'm going crazy! The heat necessary to change the state of water between a solid and a liquid is called the latent heat of vaporization, latent heat of solidification, latent heat of fusion, latent heat of liquefaction, or none of the above. I thought it was none of the above...
*Friday, December 8, 2006 at 11:25am by Pat*

**math**

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. Each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy ...
*Friday, January 28, 2011 at 10:17pm by LIZ*

**meadowcreek**

a square fishpond has an area of 68 square feet, to the nearest thenth of a foot, what is the length of a side of the fishpond
*Friday, November 18, 2011 at 5:23pm by mishell lopez*

**Chemistry**

Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is 289J/g. What mass of ...
*Thursday, December 14, 2006 at 10:45pm by Jenn*

**math**

A square room has perimeter of 32 feet. How. Many many square floor tiles with sides 1 foot long are needed to cover floor
*Tuesday, November 30, 2010 at 8:53pm by tim*

**Chemistry**

How much heat is either ______(absorbed or given off) when 91.45g of HI decomposes to H2 and I2 at 25 degrees C? What goes in the blank and how much heat? Thanks!
*Sunday, April 29, 2012 at 1:56pm by Greg*

**MATH HELP PLEASE**

The floor of a rectangular room is to be tiled with 1/3 foot square tiles along a 10 5/8 foot wall. How many tiles will be needed along the wall?
*Saturday, October 3, 2009 at 9:49pm by Anonymous*

**geometry**

A swimming pool is 30 feet wide and 60 feet long. If it is surrounded by square tiles, each of which is 1 foot by 1 foot, how many tiles are there surrounding the pool?
*Thursday, December 1, 2011 at 9:51pm by Anonymous*

**math**

a rectangular swimming pool is 15 yds x 25 yds. the bottom of the pool needs to be repainted. if it costs $4.25 per square foot to paint the pool, give the cost to repaint the bottom of the pool.
*Tuesday, January 17, 2012 at 11:00pm by Sara*

**enthalpy change**

The heat required to raise the beaker temperature will be 3/4 as much the second time, becasue of the delta-T rTIO. The heat required to heat the liquid will be higher by a factor (200/250)(2.43/0.67) = 2.90 Calculate the total heat required in the second case. The ratio (heat...
*Sunday, October 10, 2010 at 6:30pm by drwls*

**math**

Taylor is planting 4 trees at the community center.She wonts to leave a 2 square foot area between each one.How many square feet does she need for the trees?
*Tuesday, March 20, 2012 at 9:18pm by lynnay*

**Math**

Ignoring the walls’ thickness, determine the outside dimensions that will minimize a closed box’s cost if it has a square base and top, if its volume is 32 cubic meters, and if the cost per square meter for the top, bottom, and sides respectively are $.03, $.04, and $.05. (...
*Thursday, April 4, 2013 at 12:49am by Sunny *

**Math**

Ignoring the walls’ thickness, determine the outside dimensions that will minimize a closed box’s cost if it has a square base and top, if its volume is 32 cubic meters, and if the cost per square meter for the top, bottom, and sides respectively are $.03, $.04, and $.05. (...
*Thursday, April 4, 2013 at 12:49am by Sunny *

**Calculus**

A rectangular garden of area 75 sq ft is to be surrounded on 3 sides by a brick wall costing $12 per foot and on one side by a fence costing $7 per foot. Find the dimensions of the garden that the cost of the materials is minimized Read more: A rectangular garden of area 75 sq...
*Tuesday, February 21, 2012 at 8:48pm by math*

**kiki**

Suppose you bought supplies for a party. Three rolls of steamers and 15 balloons cost $30. Later, you brought 2 rolls of steamers and 4 balloons for $11. How much did each roll of steamers cost? How much did each balloon cost?
*Tuesday, February 12, 2013 at 7:38pm by answerman*

**math**

Three paintings are shapedlike an8 foot square a 7foot by 4foot rectangle,and a trianglewith a 6-footbase anda height of 7feet. If thosepaintings are hung together on the outside of a building,how much of the building's wall will they cover altogether?
*Thursday, March 8, 2012 at 5:10pm by Anonymous*

**finance**

A work at home oppurtunity is available in which you will receive 3 % of sales for customers you refer.The franchise fee is $ 840.00.How much will your customers have to buy to cover the cost?
*Monday, January 31, 2011 at 7:23am by tina*

**Algebra 1A**

Home Size The average size F in square feet of new U.S. homes built during year x is estimated by the formula F = 34x - 65,734, where x is any year from 2002 to 2008. In which year was the average home size 2504 square feet?
*Thursday, May 17, 2012 at 11:52pm by Nini*

**science**

Heat is stored in masses. How much heat depends on the temperature change, and the heat capacity. Things like water have very high heat capacity, so that if solar energy impinges, the temperature of the water does not change much. On the other hand, sand, and air, do not have ...
*Sunday, September 12, 2010 at 1:21pm by bobpursley*

**Chemistry**

I would check to see how much heat is required to change T of H2O from 62 to zero. mass H2O x specific heat water x delta T. Then see if you have that much heat from melting the ice. mass ice x heat fusion = ?? I thin you will have ice left over with ice at zero and water at ...
*Saturday, April 25, 2009 at 1:38pm by DrBob222*

**Calculus**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*Tuesday, November 28, 2006 at 11:17pm by Mike*

**math**

A rectangular pool's depth is 1m at the shallow end and gradually increases to 4m at the deep end. The pool is 32m in length and 12m width. 1. calculate the total surface area (m squared) of the pool. 2. The cost of painting the pool at $5 per square foot. 3. the amount of ...
*Thursday, November 29, 2012 at 7:33pm by Lindsay*

**chemistry**

How much heat, in kilojoules, is evolved when a 3.70 kg sample of molten Cu freezes? The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol. 2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d = 8.93 g/cm^3.
*Monday, February 15, 2010 at 6:44pm by Andrew*

**chemistry**

How much heat, in kilojoules, is evolved when a 3.70 kg sample of molten Cu freezes? The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol. 2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d = 8.93 g/cm^3.
*Monday, February 15, 2010 at 7:31pm by Andrew*

**maths-urgent**

price of a home is 164,000. bank requires a 20% down payment and 3 points at closing. the cost of the home is financed with a 30 year fixed rate mortgage at 9%
*Sunday, January 13, 2013 at 10:46am by confused*

**maths-urgent**

price of a home is 164,000. bank requires a 20% down payment and 3 points at closing. the cost of the home is financed with a 30 year fixed rate mortgage at 9%
*Sunday, January 13, 2013 at 10:46am by confused*

**Math**

You need to put carpet in a rectangular room that measures 12 feet by 17 feet at a cost of $27.50 per square yard. Assuming that you can buy precisely the amount of carpet you need, how much will the carpet for the room cost? I came up with $1870.00 but Im, not sure if I am ...
*Sunday, October 27, 2013 at 2:42pm by Kelly*

**epoka university**

1) The cost that is related to the particularly cost object and can be traced to it in an economically feasible (cost-effective) way is called: o Indirect cost o Cost tracing o Direct cost o Variable cost
*Wednesday, November 21, 2012 at 3:54pm by evisa gjoni*

**Managerial ECON**

a. What is marginal cost? b. What is average variable cost? c. How much output is been produced? d. What is average total cost? e. Is average variable cost increasing, constant, or decreasing? What about average total cost?
*Saturday, April 5, 2008 at 9:34am by Anonymous*

**accounting**

Computing in the Business World Suppose you are opening a 1,000 square foot baseball card store in a shopping center. You have signed a lease that requires you to pay a monthly rent of $1.75 per square foot, plus 5% of your gross annual sales. What is the total amount of rent ...
*Tuesday, August 29, 2006 at 1:09am by annonymous*

**Math**

A dog kennel owner needs to build a dog run (rectangular area) adjacent to a kennel cage (so that it is in the shape of a rectangle, but only three sides need to be built- one long side is already there). The short side walls of the run are to be cinder block (costs $0.50 per ...
*Tuesday, March 26, 2013 at 2:54pm by Anonymous*

**Pre-Algebra**

For this problem you need the area to find how much carpet is needed. Since I'm not a math teacher, I had to try a few possible dimensions to form a conclusion. If the small room were 10 feet by 10 feet, then its area is 100 square feet. That means the large room is 20 by 20 ...
*Tuesday, January 5, 2010 at 11:01pm by Ms. Sue*

**math check**

Would some please check these and see if I am doing them right thank you 1. Gasoline is about $2 per gallon. You use about 1 1/2 gallons each day driving to and from work. How much should you budget for gasoline over the next month (about 20 workdays)? Answer 1 1/2 x $2.00 = $...
*Friday, January 5, 2007 at 9:36am by tara*

**geometry**

A football field is 130 yards long and 70 yards wide. If sod costs $0.80 per square foot to lay, how much will the owners have to pay for sodding the entire field?
*Sunday, November 8, 2009 at 10:48pm by kimama*

**Math**

Open ended Need HELP PLEASE!!! Mr.Guy isfinishing his patio. The Patio is 14ft. by 4yds. -If each square tile is 2 by 2, how many will he need? -If the tile is 5 dollars each, but he gets every 5th one free, how much will it cost? -If tiles are also sold in boxes of 15 that ...
*Monday, March 3, 2008 at 6:29pm by Mack*

**chemistry**

We often speak in terms of pounds/square foot or kilograms/square meter. So. wotj constant weight, as the area goes down, the pressure goes up.
*Monday, November 16, 2009 at 3:31pm by DrBob222*

**Math**

Paul is painting a square wall with an area of 115 square feet. To the nearest foot, what is the length of the wall? Hint: A = s2. 11 29 42 58
*Monday, November 19, 2012 at 11:59am by Eric*

**Energy Transfer in Natural Systems**

Both the pan and the hot air are at the same temperature. But much more heat is contained in the pan (it has a much higher specific heat capacity than air). So getting a burn means you absorbed heat: the pan has more to offer. Worse yet, if you were scalded with hot water. ...
*Friday, December 3, 2010 at 10:38pm by bobpursley*

**Math**

area = 11*10 + 16*20 or 430 square feet There are 9 square feet in 1 square yard. divide by 9, then multiply by each unit cost subtract the two costs to find the savings.
*Tuesday, September 18, 2012 at 8:21pm by Reiny*

**AP Calculus AB**

Please Help! Thank you! An observatory is to be in the form of a right circular cylinder surmounted by a hemispherical dome. If the dome costs twice as much per square foot as the cylindrical wall, what are the most economical proportions for the given volume?
*Saturday, November 12, 2011 at 2:41pm by Gary*

**math**

A cleaner charges $0.50 per square foot to polish wood floors. A school hall has an area of 30 feet by 50 feet. What would be the total cost to polish the floor of the school hall? A.$80 B.$375 C.$750 D.$1,500 What is the answer?
*Tuesday, March 26, 2013 at 9:21pm by jenny*

**Phase Changes**

The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, the specifc heat of ice is 2.05 J/deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed to convert 10.73 g ...
*Wednesday, May 8, 2013 at 12:41pm by Jenny*

**Math**

perimeter defines the length and therefore cost of fencing. area defines the size of the enclosure, for example how much grass for the cows to munch. the minimum fence length for maximum grass is the perimeter to area ratio. Example for rectangle: What are the dimensions of a ...
*Sunday, August 21, 2011 at 2:53am by Damon*

**Calculus**

You would assume the side of the square (base or top) to be x (feet). The height can be expressed in terms of x and the volume. (V=L*W*H=x²*H) You would then express the sum of the costs, C, made up of 1. the cost of the base = area of base * unit cost of base, 2. the cost of ...
*Sunday, November 29, 2009 at 4:11pm by MathMate*

**chemo**

How much heat (in kJ) does it take to melt 28.4 grams of ice at 0 °C and raise the temperature of the resulting water to 25 °C? Heat of fusion 334 J/g, Specific heat 4.184 J/g °C ?
*Tuesday, October 29, 2013 at 6:58pm by melissa*

**trig **

A 115 foot foot casts a 147 foot shadow, what is the degree of elevation to the sun
*Tuesday, June 28, 2011 at 10:23pm by mike *

**Calc**

A rectangular storage container with an open top is to have a volume of 15m^3. The length of the base is twice the width of the base. Material for the base costs $6 per square meter. Material for the sides costs $7 per square meter. Find the cost of the materials for the ...
*Thursday, March 29, 2007 at 11:59pm by Martina*

**math for elementary teachers**

Compute the room area in square feet. Divide that by 9 for the area in square yards. Multiply the square yards by the cost per square yard. The seating capacity and table diameter have nothing to do with the calculation. They were presumably used to select or design the room
*Monday, March 19, 2012 at 1:54pm by drwls*

**Oceanography**

How much heat must be added to turn 3 grams of water at 100°C into a vapor and what will be the final temperature after this much heat is added
*Thursday, July 7, 2011 at 10:54pm by Pat*

**AP Chemistry**

Convert 93 gallons H2O to grams. I would use 1 gallon = 3.785 L, convert to mL then use density of 1.00 g/mL to solve for grams. How much heat is required to heat this much water (in grams) from 60 F to 99 F. Convert 60 F and 99 F to C using (F-32)*5/9 = C. Then q = heat ...
*Friday, October 11, 2013 at 6:09pm by DrBob222*

**Math**

Lindsay paid $4.40 for a gallon of ice cream.How much would a quart cost?How much would a pint cost?
*Monday, January 23, 2012 at 8:04pm by Saul*

**math**

a) Three 8 foot long 2x4's will run lengthwise down the long sides and the middle. One more 2x4 can be sawn in half for the front and rear 4-foot edges. That adds up to four. b) You know the floor area is 32 square feet. That should tell you something
*Tuesday, May 4, 2010 at 5:02pm by drwls*

**math**

Marcus wants to make a stone walkway in his garden. The rectangular walkay will be 3 feet wide and 21 feet long. Each 2-foot by 3-foot stone coveers an area of 6 square feet. How many stones will marcus need?
*Monday, September 27, 2010 at 8:31pm by Jeanie De Lascasas*

**Math**

let the point directly across from P (the power plant) be Q. then FQ = 7 miles let R be a point between F and Q so that RQ = x miles, and FR = 7-x miles. RP^2 = x^2 + 16 RP = (x^2+16)^(1/2) So the path of the pipeline is PR + RF. Cost of pipe on land: $12 per foot = $12(5280) ...
*Monday, November 17, 2008 at 7:23pm by Reiny*

**math**

You have one board that is 7/8 foot long. You want two 1/4 foot pieces. How much will be left after you cut the two pieces?
*Wednesday, April 10, 2013 at 4:31pm by Anonymous*

**math**

One square foot = 12 inches x 12 inches, which is 144 inches. Then, 36 square feet x 144 inches = 5184 inches. ============================= One square yard = 3 feet x 3 feet One foot = 12 inches. 12 inches x 3 feet = 36 inches. Then 36 inches x 36 inches = 1296 inches. 1296 ...
*Wednesday, February 13, 2008 at 10:03pm by Guido*

**math**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*Wednesday, November 29, 2006 at 1:28am by ashish*

**chemistry**

the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed to convert 12.09 g of...
*Tuesday, April 24, 2012 at 10:31pm by Randy*

**Physics -- Temp and heat**

Your swimming pool is square and 5.7 m on a side. It is 1.5 m deep in the morning. If the temperature changes by 14°C during the afternoon, how much does the depth of the water increase?
*Saturday, November 26, 2011 at 10:39pm by Anon14*

**Algebra**

How much would 29 adult tickets cost? How much would 35 child's ticket cost? Add up the two answers and voilà!
*Thursday, November 5, 2009 at 10:37pm by MathMate*

**Chemistry**

The specfic heat of iron is 0.11cal/g C. The heat of fusion of iron, the heat required to convert iron from a solid to liquid at its melting point, is 63.7cal/g. Iron melts at 1530 C. How much heat must be added to 2g of iron at 25c to completely melt it?
*Friday, March 15, 2013 at 6:24pm by Dan*

**math**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*Wednesday, November 29, 2006 at 12:40pm by jenni*

**math**

a kithen is 4 yards wide and 5 yards long.how much will it cost to cover the floor with linoleum at $16 a square yard
*Monday, March 21, 2011 at 5:03am by laura*

**math**

a kithen is 4 yards wide and 5 yards long.how much will it cost to cover the floor with linoleum at $16 a square yard
*Monday, March 21, 2011 at 5:03am by laura*

**Algebra**

You plan to put a fence around a rectangular lot. The length of the lot must be at least 60 feet. The cost of the fence along the length of the lot is $1.50 per foot, and the cost of the fence along the width is $2 per foot. The total cost cannot exceed $360. a. Use two ...
*Sunday, October 30, 2011 at 8:18pm by Dawn*

**PreCalc**

The area of a parking lot is 805 square meters. A car requires 5 square meters and a bus requires 32 square meters of space. At most 80 vehicles can park at one time. If the cost to park a car is $2.00 and the cost to park a bus is $6.00, how many buses should be in the lot to...
*Tuesday, August 31, 2010 at 1:25am by Anonymous*

**chem**

The specific heat of silver is 0.237 J/goC Its melting point is 961oC . Its heat of fusion is 11 J/g. How much heat (in J) is needed to change 17.5 g of silver from solid at 25oC to liquid at 961oC ? Add the heat required to warm the silver from room temp to the mp. Then add ...
*Tuesday, October 31, 2006 at 7:59pm by mary*

**chemistry**

Le Chatelier's Principle will answer all of the "shifting" questions. For example, A, increasing heat means the rxn must shift so as to relieve the heat. That means the rxn will shift to the left (too much heat on the right makes it go to the left to use the heat). B, ...
*Tuesday, January 5, 2010 at 1:47pm by DrBob222*

**math**

The list price of a car is $17,500. By purchasing a combination of luxury items, the cost can increase by as much as 25%. How much could the car cost with all the extras?
*Wednesday, August 11, 2010 at 10:32pm by Sarah*

**Algebra**

Use the quadratic formula to solve the equation. Give exact answers: 2x^2 -1 = 6x. The choices are: a) -3 + square root(7)/2, -3 - square root(7)/2 b) 3 + square root(11)/2, 3 - square root(11)/2 c) 3 + square root(7)/2, 3 - square root(7)/2 d) -3 + square root(11)/2, -3 - ...
*Wednesday, June 3, 2009 at 8:08pm by Hope*

**math**

I did the first part how would i graph it. Problem: Business and finance. The cost of producing a number of items x is given by C = mx + b , in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a)If the fixed cost is $40 and the ...
*Friday, December 22, 2006 at 8:10pm by jasmine20*

**specific heat capacity**

How much heat would be required to heat 1 gram of pure liquid water from 10C to 20C? How would i approach this problem?
*Monday, September 26, 2011 at 1:33am by D*

**Math**

A full bottle fo juice cost $2. If the juice cost $1.50 more than the cost of the bottle, how much does the empty bottle cost? (it is not 50c)
*Wednesday, November 17, 2010 at 10:49pm by Yan*

**math**

a sweater cost $75.00 @ 25% off how much did the sweater cost? how much did you save?
*Tuesday, January 28, 2014 at 11:56am by mon*

**Accounting**

Materials used by Square Yard Products Inc. in producing Division 3's product are currently purchased from outside suppliers at a cost of $5 per unit. However, the same materials are available from Division 6. Division 6 has unused capacity and can produce the materials needed...
*Sunday, July 28, 2013 at 6:44pm by Tee*

**problem solving**

You need to put a carpet in a rectangular room that measures 13 feet by 22 feet as a cost of $19.50 per square yard. Assuming that you can buy precisely the amount of carpet you need, how much will the carpet for the room cost? Demonstrate step-by-step solution. I got $1,858....
*Saturday, December 8, 2012 at 10:15pm by ben*

**math**

Suppose that you are responsible for predicting the cost of constructing a new office building. You find that the first story costs 500 dollars per square meter of floor space, and the second story costs 600 dollars per square meter. Assume that the costs per square meter form...
*Friday, May 4, 2012 at 9:35am by Kim*

**math**

A cleaner charges $0.50 per square foot to polish wood floors. A school hall has a floor area of 30 feet by 50 feet. What would be the total cost to polish the floor of the school hall? A.$80 B.$375 C.$750 D.$1,500
*Friday, March 29, 2013 at 12:02pm by Jessica*

**math**

Picture tiles (each one foot by one foot) on a floor. If you have 2 tiles wide and 2 tiles deep (2 x2) you would have 4 tiles or 4 square feet.
*Monday, March 29, 2010 at 8:52pm by Kathleen*

**Math**

pls help! The cost to the chicago tribune for sunday home delivery is approximately $0.53 per newspaper with fixed costs of $1,070,00.Write an equation that relates the cost C and X of copies delievered.
*Thursday, February 18, 2010 at 4:41pm by Jackie*

**math**

a cleaner charges $0.50 per square foot to polish wood floors. a school hall has a floor area of 30 feet by 50 feet. what would be the total cost to polish the floor of the school hall? A. $80 B. $375 C $750 D $1,500 I think it is C.
*Wednesday, March 27, 2013 at 9:35pm by jenny*

**Managerial Econmics**

Suppose you own a home remodeling company. You are currently earning short- run profits. The home remodeling industry is an increasing- cost industry. In the long run, what do you expect will happen to … a. …your firm’s costs of production? Explain. b. …the price you can ...
*Sunday, October 31, 2010 at 2:16pm by Roger*

**Physics**

How much energy does it extract from the outside air with coefficient of performance 3.85? A heat pump has a coefficient of performance of 3.85 and operates with a power consumption of 6.91 x 10^3 W. The first part of the question asked How much energy does it deliver into a ...
*Wednesday, February 16, 2011 at 12:25am by Z32*

**math**

3 people each want a set of ....lets say rubber bands($4) also they want the rubber band life prolonging solution($2). Oh snap! How much will it cost each person? How much will it cost altogether? Prove your answer
*Thursday, September 30, 2010 at 8:20pm by Rroyd*

**Math**

Can you help me? 360 in^ = _____ ft^ ( ^ means 2 ) So which would the answer be: 30, 3.6, 2.5, or 1.8 Wouldn't it be 30? (If I'm working this right)! Thank you!! Thank you A square foot = 12 inches by 12 inches = 144 square inches. What does dividing that into 360 square ...
*Wednesday, February 28, 2007 at 1:49pm by Bobby*

**material science**

How much heat (in BTU) would be required to heat and vaporize 100 lb of water from 25°C to saturated steam at 1 atm? Assume heat capacity is constant at 1 BTU/lb-°F and the latent heat of vaporization is 1,000 BTU/lb
*Wednesday, January 19, 2011 at 8:37am by zura*

**math**

Mr.silverman is tiling his rectangular kitchen floor. The dimensions of the floor are 12 2/3 ft by 10 1/8 ft.The tile he wants costs $1.80 per square foot. About how much will he have to pay for tile?
*Thursday, October 27, 2011 at 2:55pm by gary*

**Math - 8th Grade**

Please help: The distance from home plate to second base on a softball diamond is 84.853 feet. This is the same as the distance from first base to third base. What is the area of a softball diamond? Round your answer to the nearest square foot. 1,800 ft.2 3,558 ft.2 7,200 ft.2...
*Wednesday, May 29, 2013 at 9:22pm by Christopher *

**Calculus and vectors**

A cylindrical tank is to have a capacity of 1000 m³. It is to fit into a foundry that is 12 m wide with a height of 11 m. The base of the tank will cost half as much as the top. The metal for the side of the tank will cost four fifths as much as the top. An equation that can ...
*Wednesday, January 22, 2014 at 10:16pm by Annie*

**science**

Do you know the specific heat of solid water (ice)? If so, then it will take q calories = mass ice x specific heat ice x (0+10) to raise T from -10 C to zero C. Subtract that from 4500 to see how much(if any) heat is left. If some heat is available, then it can go to melting ...
*Tuesday, January 3, 2012 at 3:20pm by DrBob222*

**math**

The question is as follows, let c=f(A) be the cost in dollars, of building a store of area A square feet. In terms of cost and square feet what do the following quantities represent? (A) f(10,000) (B) f^-1 (20,000) I am pretty sure the answerfor A is C=10,000 and for part B it...
*Friday, August 15, 2008 at 12:42am by Hamilton*

**math**

paper probably is 8.5 by 11 inches 8.5/12 = .708 inches per foot 11/15 = .733 inches per foot so the width sets the boundary say 0.7 inches/foot then 12 feet comes out 8.4 inches and 15 feet comes out 10.5 inches if they want a scale ratio instead of inches per foot it would ...
*Thursday, December 8, 2011 at 9:09pm by Damon*

**College Physics**

The bullet will be brought down in temperature from 28 C to 0 C. That will add heat to the ice equal to M*Clead*28 = 0.868 calories where Clead is the specific heat of lead,0.031 cal/(g C) In addition to this, the kinetic energy of the bullet, will be converted to heat, equal ...
*Monday, January 30, 2012 at 11:40pm by drwls*

**physics**

Equations you will need: Q = mc deltaT e = 1 - (Qc/Qh) The first thing you need to realize is that when you're calculating Q it's Qc, because that is the heat going into the water and therefore out of the power station. So then you can plug that into e = 1- (Qc/Qh) and solve ...
*Monday, December 6, 2010 at 5:47pm by Lalala*

**math **

If 5 sweaters cost $39.40, how much would 8 sweaters cost? The cost is $__.
*Friday, September 7, 2012 at 5:41pm by Kelly*

**calculus**

A box of volume 72m^3 with square bottom and no top constructed out of two different materials. The cost of the bottom is $40/m^2 and the cost of the sides is $30/m^2. Find the dimensions of the box that minimize the total cost. How do I set up the equation(s) in the beginning...
*Tuesday, November 29, 2011 at 10:40pm by Samatha*

**social studies**

Needs in my home include heat, water, food, and clothing. Wants include computer, phone, chocolate What are the needs and wants in YOUR home?
*Monday, September 12, 2011 at 9:46pm by Ms. Sue*

**Math**

5 hockey pucks and three hockey sticks cost $23 5 hockey pucks and I hockey stick cost $20. How much does 1 hockey puck cost? I know that I cost $3.50 but idk how to get that answer
*Tuesday, September 6, 2011 at 12:37pm by Bkshdjs*

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