Home Definition and 516 Threads

Homework Statement A space probe with a mass of 7.660 103 kg is traveling through space at 110 m/s. Mission control decides that a course correction of 30.0° is needed and instructs the probe to fire rockets perpendicular to its present direction of motion. If the gas expelled by the rockets...

Homework Statement Here is the question with the below four answers, which one is it? QUESTION 1: In order to calculate the coefficient of friction what must be true about the motion of object? As long as the object is moving at constant speed it does not matter what that speed is. The...

Dear Prudie... Ended awkwardly? :smile::smile::smile: I think the writer should read Emily Post's book on eitquette instead of writing letters to Dear Prudie. If Emily Post hasn't covered this scenario, then no one has.

I have a neighbor who is OK with welding, cutting, heavy equipment, etc, and who has done me some favors after retiring to this area. I try to watch his back, too, and we are pretty cool. He is next to clueless about hunting, though. He shot a nice 8-point buck this afternoon (maybe 200#...

>>>>>>>Home made pool heater.<<<<<<<<< Ok, i know this sound a little stupid. I would like to make a home made hot tub for my mates for this Xmas. I have put together a manifold from 15mm Dia copper tubing and is 8 Meters long. I will be heating this manifold within a beer keg that...

Homework Statement see attached file, thank you Homework Equations F=ma The Attempt at a Solution i tried doing them, but i am having problems with getting all of the answers, please help <links removed - cristo>

I got a take home test for AP Physics B and I've completed it. I just wanted to check with some people to see if they agree with some of the questions I had some difficulty with. I'll list the questions & how I thought they are solved. Any and all feedback is greatly appreciated- thanks for...

Hi, I need to make a propeller using either soda bottle plastic or cardstock. I think I can come up with a mechanism to spin it with a rubber band, but, I need an efficient propeller that creates enough power to move the car I am building. Any ideas/possible designs?

I was in the attic the other day and came across my old Super Nintendo and Nintendo 64 games consoles (I also came across a Spectrum but thought that was just too old). I made the mistake of telling my two girls who insisted they wanted to try them and so for the past week they have been playing...

I have been a disable person for some years, and I was wondering about the possibilities of working at home on any field of science. math, physics, enginiery, chem, biology etc. I d really appreciate to learn more info about the possibilities of working at home. Feel free to add advices...

Over the past couple of days a large number of wasps have been getting inside my house. When I got home from work Monday and went to open the window next to my computer, there were 3 wasps between the blinds and window. I got the wasp spray and shot them down, before I could get something to...

One of my most favoured foods is fresh crusty bread ,i can not think of any thing that smells better. Trouble is no shops sell proper bread these days it is all mass produced edible play dough, and good bread making is an art ,so is there anyone who knows a way to produce a proper loaf of bread?

Ok, I am needing help turning (2, 5, 10, 17) into set builder notation. I know to get these you add odd numbers 3, 5, 7 but I can't wrap my mind around putting this into notation.

A frictionless plane is 10.0 m long and inclined at 35.0°. A sled starts at the bottom with an initial speed of 5.00 m/s up the incline. When the sled reaches the point at which it momentarily stops, a second sled is released from the top of the incline with an initial speed vi. Both sleds reach...

(a) The first postulate of Bohr deals with the existence of stationary states in which the electron has constant energy even as it orbits around the nucleus. Bohr was the first person to postulate this idea of stationary states. Express this key assumption in the language of the...

This experiment describes some of the failures of classical physics. Details of this experiment can be found in many sources, and it is interesting to work out the explanation and discover some of the joys of Quantum mechanics. The basic apparatus consists of a polarizer. When light is passed...

As I am drinking some supercooled lemonade, I've noticed that my favorite drinks are drinks that have been supercooled. When there is water or lemonade or any other drink left in the freezer for a while but it remains a liquid, and I open the drink for the first time— as it instantly freezes and...

How much do you think that a used, single wide mobile home would cost in a very rural area? Yes; I know that it depends on many factors. For my example, the used mobile home has a septic tank and a well and everything works and is in decent condition. For my xample, the mobile home includes...

Well studying at home seems harder to me, than studying in a university... Now I want some real advice... From someone who knows the Indian System of Study I have done my Bachelors in Computers from Univ. Pune... in 2007 I want to go into Theo. Physics... Masters then PhD... and not waste...

The beams in the interior wall are ALL STEEL! What the hell?! I can't drill through whatsoever. There are 3 in one wall! What do I do? The exterior wall have wood beams but insulation so hiding the wires is impossible!

Home Improvement "Help" Ok, I got myself a nice LCD TV. I have one problem. I want to hide the cable and power line into the wall. How do I go abouts doing that? Do I drop a string down a hole down to the lower hole and pull the wires up? Any helpful advice of times you messed up or any...

Glad I was home! This afternoon, I was in the kitchen cleaning blueberries when the air conditioner and refrigerator both quit at once. I checked the breakers, and couldn't find a tripped one, nor would those appliances power up. I got out my DMM and checked outlets - there was power to every...

I live in a very hot climate. I have upgraded my windows to double pane thermal with some some success in cooling my home. I have been considering both additional fiberglass insulation and a radiant heat barrier for my attic as the air conditioning bill is still horrific and rates keep rising...

It finally happened. I got to do some summer research away from home and for the first time left on my own. I found a room to rent and all, but whenever I stop actually doing some activity and start thinking, I just want to start balling my eyes out. My parents never really went on vacations...

I'm thinking about the field of mathematics. Many mathematic academics complain about teaching responsibilities and the admin matters that comes with working in an organisation. For those people, it seems research is on the top of their priority. So how about the option of researching and...

The every day things in the home, the bath, toilet, cooker, carpet, table, chairs, paint, bed, cup and saucer, knife, spoon , fork, etc, etc. Given that your TV, computer, radio are luxuries, how much do we owe to Modern invention in the home.

Post any thing you want to build but have not time/resources to do so, I want to build a three wheeled electric powered car, i have ideas to make it a practical home build project, first the body will be a monoquoc made from ply wood, the front suspension will be a (unit) that bolts to the...

Anyone lived in a timber home (house made out of weatherboard)? What is it like?

a baseball player hits a home run that just clears the top of the bleachers 21m high located 130m from home base. the ball is hit at an angle of 35* above the horizontal a) find initial velocity of the ball b)the total time of the flight of the ball...

Hey everybody, For those interested in recycling at home, is there a commercially available recycling unit for homes (about as expensive and as large as about a washer/dryer machine)? I'm designing one at home using CAD, but I am curious as to if it already exists in the home already. I sure...

Hi I have a fixed volume container which holds gas under pressure in a part liquid/part vapour form at normal temperatures. If I add additional vapour to the container it should condense to increase the liquid level, however the vapour pressure should remain the same. Would this cause...

The first one I got from a book by New Scientist. For the first experiment you need a microwave oven, a chocolate bar and a ruler. You can use these to find the speed of light (c\ =\ 2.99792458\ \times\ 10^{8}\ m\ s^{-1}). Take the rotating tray out your microwave oven and place the...

Hi I usualy lissen to radios on internet, and i would like to be able to hear it everywhere in my house, rather than just when i am on my pc. Does this exist : a Frequency Modulator that i can plug by USB to my pc, and broadcast localy (like a 250 meters range) my internet radio or any...

take home exam urgent latex help! hi! i don't know anything about latex, but i need pictures a matrix: it is a tridiagonal matrix with (1-2lambda) on the main diagonal (except for the last row where it's 1-lambda) and lambdas above and below: [(1-2*lambda) lambda 0 0 ........ 0]...

I have 2 indoor lights (hallway and garage), 3 vanity lights(small bathroom), 1 outdoor light, an outlet, and a bathroom ventilation fan connected to the same circuit breaker in my house. A few weeks ago, the lights began flickering slightly and progressively worsened until they stopped working...

Q: A 1 molar solution of which of the the following salts has the highest pH? A. NaNO3 B. Na2CO3 C. NH4CL D. NaHSO4 E. Na2SO4 I think its a because NO3 would make a strong acid making more OH but I am coufused totaly on how to find pH of salts

hii i need a link that i can downlaod from it books (dammes series) about java & c++ because i am learn it in home

So I've been curious about thermal conductivity lately, and came across a good reference that showed the conductivity of various materials. http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html It says that air has very poor thermal conductivity (in other words, it acts as an...

Homework Statement How much we need to setup a home electricity system? I just need a very brief calculation. For example: A terrace house, how long is the wire? How much per unit? How much for a power meter?

Are any of the methods used to learn another language at home any good, i never took French at school so i do not have a clue about it, and the worst part is i would need to learn technical terms more than any thing.

Well not quite. I knew our prison population was booming but when I looked at the actual numbers I was quite shocked. As a society we seem to be losing our grip. Poor education, high crime, surely the most powerful nation in the world can do better than this...

How many pounds of western subbituminous coal would be needed to heat the house (house requires 1,000,000 BTU), with a 60% efficient furnace? Subitiminous coal = 10,750 BTU/lb 1,000,000 BTU ____________ = 93.02 lb of coal. 10,750 Btu/lb And I am not exactly sure how...

I have trouble studying at home. It seems like I'm not the only one - I have a few other friends who are like this. I can't seem to sit down and focus at home. It could be because of the computer and what not, but that's not a problem if I have my laptop in school. Usually, from 5-10, the TV...

In my bedroom I use a single 220v line and made an electrical outlet while the second line is connected to the water facet which is obviously the ground. the result is a 110v power source. I use this to power my lamp shades and other bedroom lighting. so my question is, since iam only using a...

Bread? Yogurt? Beer? Wine? Yogurt is easy to make. I've never tried baking bread. A friend of mine used to brew his own beer.

http://img186.imageshack.us/img186/4594/howtohe5.jpg I know the limits of each are 1 and 3 respectively, and I did work them out by myself, but the question is 8 marks so I'm sure I didn't have enough correct notation, as I had like a line for each and I used more words than math. What...

Hi all, I was wondering if there are any quantum experiments that I can perform at home? I am talking about basic experiments by using equipments that I can purchase easily on the market - like polarized films, laser pointer etc...and how can I construct those experiments? Thanks in...

I'm sure everyone here loves to do physics at home. This weekend I made a cheap http://www.cymek.com/?q=node/109", but I want to know what other physics related activities people are doing at home.

http://www.iht.com/articles/2008/01/11/america/calif.php The obvious problem is that the government never keeps its promises - anyone who thinks it will stop here is incredibly naive. Eventually they will try to take over your home entirely. It's how the simple minds of bureaucrats work -...