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July 25, 2014

Search: how much does it cost to heat a 2452 square foot home

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math .please help its worth alot of my grade :s
The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper; which costs 1.5 cents ...
February 16, 2012 by amy

Math
The carpet cost $18.95 per square yard. The width is 18ft and the length is 25% longer than the width find the cost of the carpet
March 10, 2013 by Anonymous

heat
how much heat energy is required to raise the temperature of 5 kilograms of coal from 20 degrees celsius to 220 degrees celsius? You will need the specific heat capacity for coal...you can look that up in a table in your text.. Heatenergy=masscoal*specificheatcoal*(change in ...
July 5, 2005 by vanice

Physics
lead melts at 328 degrees C. lead has a heat of fusion of 2.04X10^4 J/kg and a specific heat of 130 J/kgK. how much heat must be removed from 0.50 kg of molten lead (liquid) at 328 degrees C to make it all a solid chunk at 300 degrees C?
November 18, 2010 by Brittany

physics
How much heat in KJ is needed to change 3.0 kg of ice at -10C into (superheated) steam at +150C ? Do I need to find specific heat? (3.0kg)(2100)(150-10)= 882kj right?
April 22, 2011 by DMITRIC

Chemistry
If 1.22 grams of magnesium reacts with 100 ml of 6.02 M HCl solution. How much heat is evolved? Density of the HCl solution is 1.10 g/ml. Assume the specific heat of water 4.184 J/gC is the specific heat of the solution. Mg + 2 HCl MgCl2 + H2
July 17, 2012 by Anonymous

Math
If the cost to recover the 60 to 70 foot cypress trees is $375 each and the cost to harvest the larger trees is 500, how much it cost to recover all of the trees if 2/5 of the trees are more than 70 feet long?
June 22, 2014 by Hity

AREA
A square lobby is to be tiled at Php160 per square meter. if the lobby were 2m narrower and 2m longer, the cost of tiling would be Php35,360. Find the dimension of the lobby. (pls write the solutions.... thanks)
January 6, 2013 by HELP HELP HELP MNHS

Algebra
Use this proportionality: A correlation V square 2/3 How much more material is needed to manufacture an industrial plastic container with twice the volume of a similar container? A manufacturer of plastic containers prices its product by the amount of plastic used to make the ...
November 26, 2011 by John

calculus
A square-based, box-shaped shipping crate is designed to have a volume of 16ft^3. The material used to make the base costs twice as much (per ft^2) as the material in the sides, and the material used to make the top costs half as much (per ft^2) as the material in the sides. ...
November 4, 2010 by Bob

Chemistry
A chemist mixes 100ml of H2O at 30 degrees Celsius and 56.0g of CaOin a calorimeter. The following reaction occurs" CaO(s) +H2O(l)--->Ca(OH)2(s) ΔH= -16.0 kcal/mol The heat capacity Ca(OH)2(s) is 19.2 cal/mol*degreeCelsius and the heat of vaporization of water is 540 ...
March 27, 2011 by Kim

Algebra
2 people are going to cover their roof with cedar shingles. Their roof has an area of 2,025 square feet. The shingles they want to use come in bundles of 100 square feetand are only sold in full bundles. Each bundle costs $171.95. They will need to hire a trained specialist to...
May 7, 2012 by Alejandro

Calculus
An open top box with a square base is to be made so that it holds 3 cubic feet. Assuming the material on the base costs $3 per square foot and the material on the sides costs $2 per square foot, determine the size of the base that minimizes the total cost.
April 16, 2014 by ACDub

Chemistry
Use Hess's Law to find the change in heat of 2C(graphite)+H2(g)-->C2H2(g)? Given: C(graphite) + O2(g) --> CO2(g) change of heat rxn = -393.5 kJ 2H2 (g) + O2(g) ---> 2H2O (l) change of heat rxn = -571.6 kJ 2C2H2 (g) +5O2(g) ----> 4CO2(g) +2H2O (l) change of heat rxn...
May 5, 2013 by Lauren

college chem
How much heat is absorbed by the calorimeter if the temperature change is 8 C and the calorimeter constant (Heat Capacity) is 3.3 J/K? Your Answer:
March 8, 2010 by debra

Tennessee State University
How much heat is absorbed by the calorimeter if the temperature change is 12 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
March 21, 2010 by Aaron

Tennessee State University
How much heat is absorbed by the calorimeter if the temperature change is 12 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
March 21, 2010 by Aaron

Tennessee State University
How much heat is absorbed by the calorimeter if the temperature change is 12 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
March 21, 2010 by Aaron

Chemistry
The density of a 1.0 M solution of NaCl is 1.04 g/mol and its specific heat, c, is 3.60 J/C*g. How much heat is absorbed by 31.4 mL of this solution if the temperature rises from 18.6 C to 29.7 C?
October 19, 2010 by Sarah

physics
How much heat does it take to warm up a 300g glass of water by 30 degrees C? (what is the formula for the specific heat of water?)
March 21, 2011 by Aria

chemistry
the temperature of a 20.0g sample of a metal(specific heat .03 J/g-C) is raised by 20C. How much heat has been absorbed by the metal?
July 13, 2011 by matt

Physics
if the specific heat of aluminum is 0.21 cal/g degree C, how much heat is givin off when 10 grams of aluminum is cooled from .50 to .10 degress
July 11, 2010 by Jasper

Chemistry
The molar heat of solution of NH4NO3 is 25.7 kJ/mol. How much heat (in kJ) would be required to dissolve 20 grams of NH4NO3 in water?
December 14, 2010 by Hannah

Chem
How much heat will be produced when 16grams of C2H6 burns? The reaction is 2 C2H6 + 7 O2 --> 4CO2 + 6 H20 triangle heat = -350kJ
April 26, 2011 by Laura

chemistry
How much heat is required to warm 250.4 g of water from 22.6 C to 75.8 C given that the specific heat capacity of water is 4.184 J/gx degrees C?
November 3, 2011 by Teresa

chem
How much energy (in Joules) is required to heat 13.48 g of water from 10.5 oC to 46.2 oC ? Use 4.184 J/goC as the specific heat capacity of water.
March 26, 2012 by emily

Chemistry
The specific heat of solid gold is 0.13 J/g C. How much heat is needed to raise the temperature of 25.0 g of gold from 23C to its melting point at 1063C?
November 29, 2013 by Rae

chemistry
How much heat energy is needed to change the temperature of 25.00 mL of water from 5.0C to 75.0C? The molar heat capacity of water for this process Cp = 75.38 J/(mol C), d = 1.00 g/mL.
May 6, 2014 by Anonymous

calculus
A box is contructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $5 per square foot and the metal for the sides costs $2 per square foot. Find the dimensions that minimize cost if the box has a volume of 40 cubic feet.
April 14, 2014 by Griffin Bilskie

CHEMISTRY
The specific heat capacity (cp) of lead is 0.13 J/g C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 C to 37 C? a. 2.0 b. -0.13 c. 0.13 d. 29
May 9, 2010 by GRACE

CHEMISTRY
The specific heat capacity (cp) of lead is 0.13 J/g C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 C to 37 C? a. 2.0 b. -0.13 c. 0.13 d. 29
May 9, 2010 by GRACE

Chemistry
When 25.0 g of ethanol vapor condenses, 23.6 kJ of heat is released. How much heat is required in kJ to vaporize 254 g of ethanol?
October 13, 2010 by Jordin

chemistry
How much heat is needed to raise the temperature of 75 grams of copper from 35aC to 57aC? The specific heat of copper is 0.385 J/g aC.
December 7, 2011 by mario

chemistry
How much heat is needed to raise the temperature of 75 grams of copper from 35aC to 57aC? The specific heat of copper is 0.385 J/g aC.
December 7, 2011 by mario

Physics
How much heat is required to raise the temperature of a 4.3-kg block of steel by 48 K? (The specific heat of this steel is 450 J/kg K.)
July 31, 2012 by Sierra

chemistery
How much heat, in joules and calories, is needed to heat up 295 mL of water from 26.6 C to 85.1 C? Assume the density of water to be 1.00 g/mL.
March 24, 2013 by dug

MATH
just wanted to check a few more questions... 1. Find the prime factorization of the number 20. Answer- 2x2x5 2. Find the greatest common factor of 30, 45, and 50. Answer -5 3. Complete the statement using the given property. 6 x (4 x 7) = Associative property of multiplication...
September 5, 2009 by A

physics
Consider a room air conditioner using a Carnot cycle at maximum theoretical efficiency and operating between the temperatures of 19.7C (indoors) and 28.7C (outdoors). For each 1.00 J of heat flowing out of the room into the air conditioner a) How much heat flows out of the ...
December 18, 2012 by helena

Physics
How much energy is required to change a 58 g ice cube from ice at −1◦C to steam at 101◦C? The specific heat of ice is 2090 J/kg ◦ C and of water 4186 J/kg ◦ C. The latent heat of fusion of water is 3.33 105 J/kg, its latent heat of ...
January 30, 2013 by Tiffany

Phyics
How much energy is required to change a 57 g ice cube from ice at −4◦C to steam at 107◦C? The specific heat of ice is 2090 J/kg ◦ C and of water 4186 J/kg ◦ C. The latent heat of fusion of water is 3.33 105 J/kg, its latent heat of ...
July 8, 2013 by Beatles Lover

physics
The cost of gasoline per hour for running a certain car is directly proportional to the square of the speed. I f the cost is $2.40 per hour for a speed of 40 km/h, what is the cost per hour for a speed of 60 km/h?
November 22, 2011 by Anonymous

Urgent-Chemistry Help
I need help with the heat effects and calorimetry worksheet. Please explain how to solve it! Thank you so much! A metal sample weighing 45.2g and at a temperature of 100.0 C was placed in 38.6g of water in a calorimeter at 25.6 C. At equilibrium the temperature of the water ...
December 4, 2006 by Tiffany

science
The density of a 1.0 M solution of NaCl is 1.04 g/mL and its specific heat, c, is 3.06 J/C*g. How much heat is absorbed by 3.14 mL of this solution if the temperature rises from 18.6C to 29.7C? q=m*C*delta T (1.04g)(3.06)(11.1K)=35.32 is that right?
October 22, 2009 by megan

Chem
How much heat do I need to convert 200g of liquid water at -25C to water at 30C?. The specific heat capacity of H2O(s) is 2.1 J g*C
February 28, 2011 by diana

science
the specific heat of sliver is 0.235j /g.c. how much heat is neeeded to raise the tempreature of an 8 gram sliver ring be 50 degrees celecius
March 1, 2011 by nikita

Pre Chem
How much heat will be produced when 16grams of C2H6 burns? The reaction is 2 C2H6 + 7 O2 --> 4CO2 + 6 H20 triangle heat = -350kJ
April 27, 2011 by Laura

math
A solar home contains 3.50 multiplied by 105 kg of concrete (specific heat = 1.00 kJ/kgK). How much heat is given off by the concrete when it cools from 29 to 20C?
November 13, 2012 by Adam

chemistry
How much ice is required to cool a 15.0oz drink from 71 F to 34 F, if the heat capacity of the drink is 4.18 J/g*C ? (Assume that the heat transfer is 100% efficient.)
January 22, 2013 by Jack

Math
Suppose you want to use hardwood flooring for most of a 750 square foot apartment. Labor costs are $250 plus a $2 feet per square foot of installation. The cost per square foot of hardwood flooring is $7.00. Write an inequality to show the square feet in the apartment you ...
December 3, 2010 by Helene

Physics
Spent steam from an electric generating plant leaves the turbines at 120.0 degrees Celsius and is cooled to 90.0 degrees Celsuius liquid water by water from a cooling tower in a heat exchanger. How much heat is removed by the cooling tower water for each kilogram of spent ...
November 21, 2006 by Erica

chem
How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your calculation. cice = 2 J/g C csteam = 2 J/g C cwater = 4 J/g C Hvap = 2, 260 J/g Hfus = 340 J/g
March 1, 2012 by please help !

chemistry
How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your calculation. cice = 2 J/g C csteam = 2 J/g C cwater = 4 J/g C Hvap = 2, 260 J/g Hfus = 340 J/g
March 1, 2012 by please help !

chemistry
How much heat is absorbed by the calorimeter if the temperature change is 8C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
March 31, 2008 by depressed

chemistry
How much heat is absorbed by the calorimeter if the temperature change is 8 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
March 8, 2010 by debra

Chemistry!!
How much heat is required to raise the temperature of 250.0 g of mercury 52C? The specific heat of mercury is 0.14 J/(gC).
May 21, 2010 by Meg Hat

chemistry
How much heat is absorbed by the calorimeter if the temperature change is 8 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
June 18, 2010 by tsu

chemistry
How much heat is absorbed by the calorimeter if the temperature change is 10 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
November 3, 2011 by Ashley

chem
How much heat is required to heat 0.1 g of ice at −30 degrees C to steam at 100 degrees C
March 1, 2012 by sammy

chemistry
the heat of vaporization of water is 2.26kJ/g. how much heat is needed to change 2.55 g of water to steam?
April 20, 2012 by Randy

chemistry
the heat of vaporizaton of water is 2.26kJ/g. How much heat is needed to change 4.2 g of water to steam.
April 24, 2012 by Randy

Phase Changes
The heat of vaporization of water is 2.26 kJ/g. How much heat is needed to change 3.74 g of water to steam?
May 7, 2013 by Jenny

maths
if 7 pencils cost 1.68 how much will 10 cost?
June 30, 2013 by jamelia

science
The specific heat of solid gold is 0.13J/gC.How much heat is needed to raise the temperature of 25.0g of gold from 23C to its melting point at 1063C
July 15, 2011 by Toni

chemistry
How much heat (in cal) is necessary to heat 27.0 mL of octane (s= 0.526 cal/g C ; d = o.703 g/mL ) from 50.6 C to 67.2 C? I understand the Delta T is = 16.6C But I dont know what d stands for (density) or how to apply to the formula.
February 3, 2013 by Joseph

science
How much heat is absorbed when 52.3 g H2O(l) at 100C and 101.3 kPa is converted to steam at 100C? (The molar heat of vaporization of water is 40.7 kJ/mol.)
June 27, 2013 by michael

math
How much cans of paint is needed to cover an area of 36 metres square if one can covers 25meters square.
January 16, 2013 by Anonymous

calculus
i understand optimization but im stuck on this problem.. mrs.day is building a new deck. she has 580 square feet to enclose. if one side is bounded by a wall, find the minimum cost to build the deck if one pair of opposite sides cost $12 per foot and remaining sides cost $19 ...
January 2, 2011 by tiana

math
A person hired a fire to build a CB radio tower. the firm charges 100 for labor for the first 10 feet. After that, the cost of the labor for each succeeding 10 feet is $25. more than the preceding 10 feet. That is, the next 10 feet will cost $125, the next 10 feet will cost $...
July 9, 2012 by Anonymous

math
you are planning to open a candy stand with your friends. you will need to buy 20 candy bars at a wholesale cost of $.30 each. you will need to buy 15 lollipops at a cost of $.05 each. How much money will you spend ALL TOGETHER? its pretty confusing :( and this one: for a ...
May 22, 2014 by triganle

math
If 5 sweaters cost $39.40, how much would 8 sweaters cost? The cost is $__.
September 7, 2012 by Kelly

math
Problem The latent heat of fusion (solid become liquid) for ice is 79.8 cal/gram. How much ice can we melt with 1000 calories of heat? Problem Which would require more heat, melting 500 g of 0 C ice or turning 500 g of 100 C water into steam? Problem A 500 g sample of an ...
October 6, 2008 by sherri

math
Help solving one more question please!Mason spent $15.85 for 3 notebooks and 2 boxes of markers.The boxes of markers cost $3.95 each,and the sales tax was $1.23.he also used a coupon for $0.75 off his purchase.If each notebook had same cost,how much did each notebook cost?
February 25, 2014 by zion

Math (algebra)
I have no idea how to solve this problem... A village wants to build a community center that is projected to cost 1.2 million dollars. Cost per resident is increased by #$ as it is discovered that there are 225 fewer residents than when planning began 2 years ago. What is the ...
October 12, 2012 by Ashley

maths
In Newtopia, inflation runs at 15%. A home entertainment unit currently sells for $2000. A)How much would you expect it to cost in a year`s time? B)How much would you expect it to cost in two year`s time?
February 24, 2011 by Anonymous

chemistry
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. The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol.
February 15, 2010 by Andrew

CHEM
How much heat is released in the formation of 10 liters of NH3(g) at 25 C and 1 atm, given : 2N2+3H2 ----> 2 NH3 HEAT OF FUSION IS - 92.6 KJ show steps please
November 18, 2010 by MAX

calculus
A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $4 per square foot and the metal for the sides costs $4 per square foot. Find the dimensions that minimize cost if the box has a volume of 50 cubic feet. ...
November 11, 2011 by saud

Calculus
A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $2 per square foot and the metal for the sides costs $7 per square foot. Find the dimensions that minimize cost if the box has a volume of 30 cubic feet. ...
November 13, 2011 by Kayla

chemistry
the specific heat of ethanol is o.58 cal/g c how much energy is required to heat 60.0 g of ethanol for 25 g c to 45 c
August 23, 2012 by kathy ascencio

Physics
My problem is as follows "A 3 kg brick is dropped from a height of 1.0 m onto a nail which is vertically stuck in a plank of wood. If the nail doesn't move in much, how much heat is produced in the system when the brick hits and sticks onto the top of the nail." I know PE is ...
April 16, 2009 by Brigid

Algebra
Rationalize each expression by building perfect nth root factors for each denominator. Assume all variables represent positive quantities. I dont understand how to compute these. Also I dont have the square root sign so I typed it out where it would be and the number before ...
January 18, 2013 by Becca

Physics
If the air temperature is the same as the temperature of your skin (about 30 degrees Celcius), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 71.0 kg persons body ...
November 21, 2008 by Angel

accounting
Richard Hamilton has a fast - food franchise and must pay a franchise fee of $35000 plus 3% of gross sales. In terms of cost behavior, the total cost is a: a) variable cost b) fixed cost c) step - fixed cost d) mixed cost
February 23, 2014 by Morgan

MATH
A CIRCULAR COFFEE TABLE HAS A DIAMETER IF 5FT. WHAT WILL THE COST BE TO BE REFINISHED IF THE COMPANY CHARGES $3.00 PER SQUARE FOOT? A+=+pi%2Ar%5E2 r+=+2.5 A+=+pi%2A2.5%5E2 A+=+pi%2A6.25 A+=+19.635 ft2 If cost = C C+=+3%2A19.635 C = $58.90 answer
December 2, 2010 by TANGIE

math
Mr. Simon landscapes new houses for a building contractor. He charges by the square meter of yard space plus a setup fee. He billed the contractor $2,150 for a 400-square- meter yard and $1,650 for a 300-square-meter yard. Write an equation in the form y = mx + b that can be ...
June 17, 2014 by Anonymous

calculus
A display case is in the shape of a rectangular box with a square base. Suppose the volume is 21 cubic ft and it costs $1 per square ft. to build the glass top and $0.50 per sq. ft. to build the sides and base. If x is the length of one side of the base, what value should x ...
December 3, 2013 by sara

Physics
How much heat is required to melt 50 g of mercury at -45 degrees celsius to 425 degrees celsius. (melting point=-38.degree-c, specific heat=0.03325 cal/g-degree c for solid mercury, .2988 cal/g-c degree c for liquid mercury and .2486 cal/g-c degree for gaseous mercury, heat of...
February 27, 2012 by Abby

Physics
How much heat is required to melt 50 g of mercury at -45 degrees celsius to 425 degrees celsius. (melting point=-38.degree-c, specific heat=0.03325 cal/g-degree c for solid mercury, .2988 cal/g-c degree c for liquid mercury and .2486 cal/g-c degree for gaseous mercury, heat ...
February 27, 2012 by Abby

Physics
How much heat is required to melt 50 g of mercury at -45 degrees celsius to 425 degrees celsius. (melting point=-38.degree-c, specific heat=0.03325 cal/g-degree c for solid mercury, .2988 cal/g-c degree c for liquid mercury and .2486 cal/g-c degree for gaseous mercury, heat ...
February 27, 2012 by Abby

Programming Using Raptor
How do i program this into Raptor Language? print "What is the cost of the item?" input cost if ((cost >= 0) && (cost < 20)){print "The shipping is $2.95."} if ((cost >= 20) && (cost < 50)){print "The shipping is $3.95."} if ((cost >= 50) && (cost < 80)){...
December 5, 2012 by Latrell

Math
A contractor has been asked to pave 15 miles of new road. Before he can set his price, he needs to know how much the cement will cost. If the road is 45 feet wide and 9 inches thick and the cost of cement is $35 per cubic yard, what will be the cost of the cement needed for ...
May 2, 2013 by Suzy

Heat & Properties of Matter
A rail way 50m long, with initial temperature of 20degree celsius subjected to a great heat. How much will it expand which its temperature is tripled?
October 18, 2009 by Beta plus

physics
How much heat must be added to 0.55 kg of aluminum to change it from a solid at 180C to a liquid at 660C (its melting point)? The latent heat of fusion for aluminum is 4.0 105 J/kg.
December 10, 2010 by maria

Physics
A reversible heat engine operates between thermal reservoirs at 1000 K and 290 K. If 8610 J is extracted from the hot reservoir, how much work is done by the heat engine?
December 9, 2011 by Jon

math
a pencil, eraser and notebook together cost one dollar. a notebook costs more than two pencils, three pencils cost more than four erasers, and three erasers cost more than a notebook. how much does each item cost
February 8, 2010 by vasumathi

Math ~CHECK MY ANSWER~
1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers? a. Square root 120 , n , Square root 3 ****** b. - Square root 256 , 1/9 , 1/12 c. 3.14...
February 10, 2014 by Wendy

math
a coat,shirt and tie cost $300. coat costs twice as much as the shirt. shirt cost $40 more than twice the cost of the tie. what are the cost of each item?
February 7, 2013 by alice

Math
What formula would I use to figure this. There is 500 sq. feet in a palate of grass. The cost is $15.00 a palate. What cents would that be per sq foot? Thanks. I think you mean pallet. A palate is in your mouth. To get the cost per square foot, divide the cost ($15) bu the ...
May 11, 2007 by Gerri

i need help on these
can someone help me figure these ones i know the answers but how do you get them? #3 It costs $1 per sqaure yard to waterproof canvas. What will it cost to waterproof a canvas truck cover that is 15'x 24'? answer; $40 #4 A part time employee worked a total of 16 1/2 hours ...
July 30, 2007 by chrisssy

Math
Subtract money amounts 1/ Aidan has $5.00 to buy a can of tennis balls that cost $3.79. How much change should he get back? 2/ Sylvia has $10.00 to buy a hairbrush that cost $ 6.88. How much change should she get back?
February 19, 2014 by NA

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