89,360 results

### algebra

The formula b=27a, is used in New England to estimate the minimum furnace output, b, in BTUs, for a modern house with a square feet of flooring. What is the minimum furnace output for BTUs? What is the answer to A? I have searched and listened to all kinds of algebra help ...

Although I vaguely see DrBob222's concept, I still need some help in the set up. Thank you. A 10 lb. frozen boneless roast needs to be thawed and baked to a temperature of 200 degrees F. The storage freezer maintains a temperature of -10 degrees F. Pork changes from solid to a...

### math

While shopping for an air conditioner, Adam Bryer consulted the following table giving a machines BTUs and the square footage that it would cool. Ft^2(x) BTUs(y) 150 5000 175 5500 215 6000 250 6500 280 7000 310 7500 350 8000 370 8500 420 9000 450 9500 a. Find the equation for ...

### Science

1). Assume the following: -the house has 2,000 square feet -80,000 BTU's of heat per sq. foot are required to heat the house for winter. -Natural gas is available at a cost of \$5.00 per thousand cubic feet. -One cubic foot of natural gas supplies 1,000 BTUs of heat energy -The...

### Science

A 10 lb. frozen boneless roast needs to be thawed and baked to a temperature of 200 degrees F. The storage freezer maintains a temperature of -10 degrees F. Pork changes from solid to a thawed state at 30 degrees F and has the following properties: Heat Capacity "c" (frozen...

### math/116

The formula b=28a is used in New England to estimate the minimum furnace output, b, BTUs, for a modern house with a square feet of flooring. a. Determine the minimum output for a 2300 ft squared modern house. b. solve the formula for a.

### Chemistry

An office heater puts out 2070 Btus (British thermal units) of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater (assume continuous operation)?

### Chemistry

An office heater puts out 2070 Btus (British thermal units) of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater (assume continuous operation)?

### college math

The formula b=34a is used in New England to estimate the minimum furnace output, b, in BTUs, for a modern house with a square feet of flooring. a)Determine the minimum furnace output for a 16000 ft^2 modern house b)Solve for formula a

### Math problem

The formula b=29a is used to estimate the minimum furnance output B in btus for a modern house with the amount of square feet of flooring A 1. determine the minimum furnance output for a 2300 ft2 modern house 2. solve the formula A

### Math 116

The formula b=28a is used in New England to estimate the minimum furnace output, b, in BTUs, for a modern house with a square feet of flooring. A) determine the minimum furnace output for a 2200 ft squar modern house B) Solve the formula for a

### Science

so first of all, not really sure if this is Science =S Okay, could someone please name 4 or 5 animals that are now extinct? and please, more well known ones =D and don't be too general please, ex. dinosaur. Thanks!

### Physics

A solar still is used to make fresh water from salt water by evaporation. Assume that during a summer day that 1000 BTU/ft sq of solar energy falls on the surface of the salt water. Determine how many inches of water are evaporated in 30 days. Assume that 1040 BTUs is needed ...

### Physics

A solar still is used to make fresh water from salt water by evaporation. Assume that during a summer day that 1000 BTU/ft sq of solar energy falls on the surface of the salt water. Determine how many inches of water are evaporated in 30 days. Assume that 1040 BTUs is needed ...

### Physics: Conversions

Naval Question: MIDN Rabbit recently completed the NAVY PFA last Friday. During the course of CRUSHING the run and setting a new PR of 7:55, he/she performed a total of 1.1 million ft-Ibf of work. 1). Convert 1.1 million ft-Ibf of work to BTUs 2). Assume MIDN Rabbit's mass is ...

### Courses *URGENT*

I have to complete a course selection form for school but I'm having some trouble understanding some of the courses. Can someone please help me please? Science and Technology: This is a science course provided to meet the needs of students requiring a general science course ...

### Science-Urgent

Can someone please have a moment to look at my other science posts, Please and thank you :-)

### General

This is a question to everybody: I was just wondering if anyone had any science related questions or things they wonder about that may require experiments. If you have any ideas please mention them. I need this for a science for a science fair project and have at most a 6 ...

Hello i need some help with this science project please. How long would it take to get to mars if i'm travel 600 miles per hour. Thanks :)

### Science (Cont.)

Can anyone please answer my science question???? PLEASE!! if nobody on here is answering, try doing a little research on other websites i need some help on my homework

### science

i need help on my science project i have a science fair on march somethin please give me any ideas possible u know plz thanks. (0.o)

ANYONE PLEASE REPLY MY OTHER POST (SCIENCE 7R: LAB QUESTIONS) IS MY ANSWER IS CORRECT ON #13????? PLEASE!!!!!!!!!!!!!!!!!!!!! PLEASE!!!!!!!! - Laruen , Thursday, December 1, 2011 at 6:33pm Chloroplast are used for food making (photosynthesis). That is only found in a plant ...

### Science Helpers

My science post is almost at the bottom and I need it to be checked urgently. I see science helpers on this site as of right now.--Can you please have a moment to look at my Science post. Thank you very much in advance:-)

### Earth Science

What are two forces that cause the Earth's surface to constantly change and what are their effects on the planet? Please help I do homeschooling and I'm super behind in science please answer before 12:00 p.m. on 11-17-09

### science

I am SOOOO stuck on this science question!! It's not that hard but, science isn't my forte..... here it is...." If the mass of the brick is 50 grams and it's volume is 9cm cubed, calculate the density of the block using the formula D = m/v." HELP PLEASE!!!!

### Science fair project

Please help me, i think i have nothing left to do except cry!!! My science fair class presentation is tomorrow but i am not even done, i just started!!!! My parents are upset with me, and i think i will get a F in my report card for science this term, my worst! PLEASE TELL ME ...

### science

please help me i am in 4th grade and i need help on my science project. my science project is, is smiling contagious and i have no idea what to do for research and data

### Science

May somebody help and explain please with 2 question explain why science is a continuous progression of study and y is the use of the inquiry process a practical way to approach science

### Science

Science project ideas for science fair. I need to prepare a model for science fair. But I need some ideas about the major problems facing today's world. So that I can get idea for improvement in any area and to show this in science fair. Please get me know about the ...

### science fair

I need to do a project for the science fair but I don't know what to do. My science teacher says it has to be like the water dancing on a penny, everything has to be the same but you have to change one thing. What can I do?????? HELP ME PLEASE :/

Sorry! this is alot of questions. Science is not my best subject but i still do well in it but the questions are really hard for me pleas help answer this. What might you ask yourself in drawing a conclusion about an experiment? Why is scientific inquiry a process with many ...

### science and history

How did the apollo 11 space mission pave a way for 1.) technology 2.) science 3.) America 4.) space exploration Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please re-post and let us know what you think. ...

My science teacher is really mean. And if I don't have the following questions done, I have a suspention! Please help!! 1) What discovery demonstrated that atoms are not the smallest particles? 2) Dalton did what to his theory that Democritus did not? 3) It is important for ...

### SCIENCE-HELP! IM RUNNING OUTTA TIME--ASAP!

There is no need to post questions more than once. Please keep in mind that all teachers here are volunteers and are not online all the time. Please have patience and wait for a science teacher to help you.

### Science Fair Project

Please help anyone!!!!!!!!!!!!!!!!!!!!!!! I need a science project that can be done in 2-5 days but also that can give me a very good mark!!!!!!!!!!!!!!! please reply A.S.A.P.!!!!!!!!!!!!!!!!!! -From a Science Fair Project in need of a project which can be done in 2-5days.B.T....

### science

So the question is write down three examples of science in your everyday life. This was my answer: sound- compression wave, Baked goods- chemical reaction, Looking at mountains or ocean- earth science Please check my answer and see if this is good thank you

### science

I really need some help...so please give me an acrostic for the word; "science"

### Science 7

What is Ohm's Law? The exact definition please! This is for 7th grade science.

### science

Hi, tomorrow is my science practical and i need help with independent and dependent variables. PLEASE HELP

### science

please can you find me a word that is science related with these letters pamouseen

Please unscramble this word "qrtueo" its for science

### science

1:an example of chromotography? please i need these science questions by tomorrow :(

### Science

Ms. Sue this is Ava will you please check my science answers that i posted

### Science

May someone please review my last to science parts and let me know what is right and wrong

### Science Check

Can someone please have a moment to look at my other science posts, thanks :-)

### science

can anybody give me an explanation of the kinetic theory. My science is due on friday 16th november. please help!

### science

i have to write a science acrostic poem on the word sublimation can any one help me with this please. thanks in advance.

### *Science-Check*-Help

Can someone please have a moment to look at my other previous science posts, thanks :-)

### Science, Nature Science

Can you please give me three examples of things that photosynthesize that live in oceans?

### science

cam anybody give me an explanation of the kinetic theory. My science is due on friday 16th november. please help!

### science

whocan give me 10 interesting facts about sulfuric asid for my science homework please Thx!!

### Science

Could someone please have a moment to look at my science posts. I really need help on them. I'll appreciate all your help, thanks:-)

### science

My son has a science project to do on "Does a plant groww bigger if watered with milk or water?. Please if you can help how to get started

### science

could you please help me find a site that shows different types of science beakers with its name and a picture of the beaker? ur help is appreciated:)

### science gr.8 science fair topic ideas

what are some ideas for science fair projects gr.8?!?! and please give an experiment with it thank u!!

### science

what are the layers of the earth's interior in order??? Please send asap I am making a science study guide for my huge exam!

### Science

Could someone please have a moment to look at my science posts as well; I want Jiskha tutors to help me with them, thank you very much for all the help you could give me:-)

### English

I have to write a Haiku with has to do with Science, please let me know if this is good. Science is great fun you get to use chemicals, but safety is first. Thank you.

### Science

Hello,could somebody help me with my science homework,please.Explain, how a substance will dissolve differently if the temperature changes?..Thank you very much for your help.

### Science Project suggestions??

I cannot think of an original science project idea. I would really like an original one instead of the online ones which have already have their own procedures and stuff. I would like to do a science project that is has to do with chemistry or computer science. Please help!

### Science fair

PLEASE HELP MS.SUE. I really need your help I'm in 3rd grade and I have to do a science fair project. I'm planning on doing the science fair project about making hot water freeze. Is it a good idea if not can you give me some ideas? And if it is then can you explain it to me?

### Science fair

PLEASE HELP MS.SUE. I really need your help I'm in 3rd grade and I have to do a science fair project. I'm planning on doing the science fair project about making hot water freeze. Is it a good idea if not can you give me some ideas? And if it is then can you explain it to me?

### To: DrBob222

Can you please check my previous science post. As of right now, you are the only science teacher on this site--which is why I am pleading you to. Thank you very much:-)

### science

what factors affect plant growth, i nkow light, water, and all the stuff but more things please, for my science project!:)

### Science

Hi!I wished you can help me with my science fair project.I don't know what to do or which to pick.Please help me.Any suggestion?I'm a fifth grader by the way.I appreciate it a lot. Endless Thanks, Marie

### Environmental Science

Could you please explain the distinction between eutrophication and artifical eutrophication sense eutrophication is the natural process by which a body of water gains an abundance of nutrients? One is natural and occured long before man's time. The other is man caused, ...

### Science Fair Project

Please help any tutors around, i really need help on what topic to choose, and my science fair is in February 16, 2015!!!!!! I just want to get a really good mark so i get an A in Science again this year in my report card. From a Student in need!!!Wimbika

How can you tell the similarity between displacement and average velocity? It is for a part of a science problem. The lesson did not tell me how to do this. I have been stuck on that problem for a while. I also had my sister help me, and I looked things up for the problem. I ...

### science

I’m 16 years old from Cambodia. Please give me some science competition website available for me that use internet to have contest (mean that no traveling). Thanks!

### science

what are variables in science experiments? please give me an example like my experiment is how to tell if a person is lying by his body language.thank you. need answer badly!!!

### Science

I know tat this sounds silly but my science techer is giving us expierements to try out and she picked for me to reserch how to get rid of split ends??? Can I get a link please?

### science

Fish- Amphibian- Mammal- Magma- Lava- Earthquake- Tectonic Plates- Ring of Fire- Tsunami- Tide- Could you please give me the definitions in science terms?

### Science 8R

What is Combustion? this is not homework (please give me a good definition for 8th graders like me to understand) BTW - I'm creating a study guide for the NYS Science Test I'm taking at the end of the year. We started taking notes in my science class that we can use to study ...

### Science

Science To determine the acceleration of an object moving in a straight line, you must calculate the change in its stored during each unit of A. Velocity. B. Time. C. Motion. ******* D. Deceleration Please help

### Science 8R - HW Help!

Science 8R HW - Using the steps of the Scientific Method solve a problem that you may have (for example, 1. How can I get my little brother to stop eating my homework) I can't think of one.... please help! any ideas or suggestions???

My body is covered with bony plates, but i am a fish. I am male, but i take care of all my young. i can swim, but i prefer to be carried by ocean currents. i look like a familiar land animal. What am i?

### English

Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific advances and/or how ...

### science

please list out 6 functions of the blood and please write the reference of it