Science & Mathematics - 25 January 2007

1. A type of mechanical energy that allows you to hear things.
2. If you increase this type of energy, an object gets warmer.
3. Kinetic energy from radios and televisions.
4. Potential energy having to do with how far off the ground an object is.
5. An object that stores and uses electrical energy.

2007-01-25 14:42:25 · 4 answers · asked by Sex Head 1 in Physics

is the temperature of the lamp in the( left hand) projector in class a continuous or discontinuous function of time? explain.

2007-01-25 14:41:49 · 4 answers · asked by Anonymous in Mathematics

I got Slope:0: y-intercept (0,-4). Am I correct? Thats all I want to know Please!!!!

2007-01-25 14:41:42 · 4 answers · asked by momoftwins1986 1 in Mathematics

justify if the following statement is always, sometimes or never true
In triangle PQR, PQ
I am thinking always true Theorem5.8 but i might be wrong
PLEASE HELP

2007-01-25 14:41:33 · 3 answers · asked by brighton 3 in Mathematics

I dont have a specific question..its just im doing a project and really need help on knowing as much as i can about:

moon
stars
light pollution
moon light

the question for my project is..Do moon phases effect how many stars you see at night?..which..includes if the moon gives off light..what would happen to the stars

2007-01-25 14:41:13 · 8 answers · asked by Anonymous in Astronomy & Space

2007-01-25 14:39:50 · 2 answers · asked by Anonymous in Mathematics

2007-01-25 14:39:48 · 2 answers · asked by Anonymous in Mathematics

Ive tried to integrate this over and over by parts is it doable ?? Please help... thanks in advance

2007-01-25 14:38:22 · 3 answers · asked by Anonymous in Mathematics

(Root Symbol does not show on Yahoo Answers.)


Number 1. 5 root 6 times 2x root 6.
Number 2: root 12 times root 3xy squared.
Number 3: 4 times root 3 times -5 times root 21.
Number 4: 5 times root 45 times x cubed times y squared times root 5x.
Number 5: root 24 plus root 54. NOTICE number 5 is an addition problem.

2007-01-25 14:37:17 · 2 answers · asked by j0nmarin0 1 in Mathematics

Ah, I'm really confused on this one; i dont get it at all. i need an explanation... i know a squared +b squared= (a-b)(a+b)... but I dont get that either. plz help!

2007-01-25 14:36:19 · 1 answers · asked by Teenager 2 in Mathematics

this is a very nice question i know the answer. u need to remember relativity theory

2007-01-25 14:32:11 · 7 answers · asked by Anonymous in Astronomy & Space

help!

2007-01-25 14:30:45 · 4 answers · asked by Anonymous in Chemistry

Please give details. (I don't want to know that it explodes.)

2007-01-25 14:30:41 · 4 answers · asked by sportsmurjr 1 in Chemistry

I keep finding huge lizards in my backyard (1-2m big) some are just a bit smaller and some are Blue-tounge lizards. I'm just wondering if they dangerous at all? Oh and I live in Australia...if that helps

2007-01-25 14:29:33 · 6 answers · asked by f l i r t a z n 2 in Zoology

2007-01-25 14:28:32 · 2 answers · asked by Anonymous in Medicine

2007-01-25 14:28:00 · 14 answers · asked by YOLANDA E 1 in Astronomy & Space

2007-01-25 14:27:57 · 1 answers · asked by mattuff g 1 in Zoology

If the EPA highway mileage for a compact car is 36 miles per gallon, what is the mileage in kilometer per liter?

Given: ( 1 mi = 1.61km
1 gallon = 3.784 L )

2007-01-25 14:27:26 · 3 answers · asked by Sara 1 in Chemistry

ps:what is the prefix that means 6 if their is one

2007-01-25 14:26:56 · 2 answers · asked by Yana 2 in Mathematics

I'm really not sure how to approach this problem...

An airplane has a mass of 2.0 x 10^6 kg, and the air flows past the lower surface of the wings at 95 m/s. If the wings have a surface area of 1200 m^2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air? Consider only the Bernoulli effect.

Thanks.

2007-01-25 14:25:38 · 1 answers · asked by nazzyonenine 3 in Physics

Why are reaction buffers supplied at concentrations? And why are reaction buffers needed? Why can't the reaction be run in pure water?

2007-01-25 14:24:58 · 1 answers · asked by Carter 2 in Biology

What are two everyday applications of fermentation???if you know the right answers could you please tell me im hoping not to fail biology this quarter!! please!

2007-01-25 14:23:28 · 4 answers · asked by Mike C 1 in Biology

A)Consider an aqueous solution of isopropyl alcohol, C3H7OH. If the mole fraction of alcohol is 0.3484, what is the percent by mass of alcohol in the solution

B) Consider an aqueous solution of isopropyl alcohol, C3H7OH. If the mole fraction of alcohol is 0.312, what is the molality of alcohol in the solution?

2007-01-25 14:22:56 · 1 answers · asked by Anonymous in Chemistry

IN Triangle ABC, angle ACB=90 degrees. D and E lie on line AB such that line CD is perpendicular to line AB and line AE=line EB. F lies on line CB such that line EF is perpendicular to line CB. CE=8 and EF=10. In simplest radical form, CD=k times the Sq. root of w all over 9.

2007-01-25 14:22:36 · 2 answers · asked by Quagmire77 1 in Mathematics

how do i solve:

a^n=a^1+(n-1)d for n?

I am sooo confused on this stuff!!

2007-01-25 14:21:45 · 1 answers · asked by abe_cooldude 1 in Mathematics

a reflected image in a mirror is inverted left to right but not top to bottom. my left hand appears on the right in a mirror reflected image. But, there is no inversion in the vertical direction...My head and feet don't get inverted...Why ?

2007-01-25 14:20:41 · 14 answers · asked by vg 1 in Physics

answer it

2007-01-25 14:19:27 · 16 answers · asked by gooshdalon 1 in Mathematics

2007-01-25 14:18:42 · 3 answers · asked by sheri 2 in Earth Sciences & Geology

In a (4 by 4 by 4) cube, there are 64 (1 by 1 by 1) cubes imbedded; 27 (2 by 2 by 2 ) cubes imbedded; 8 (3 by 3 by 3); and 1 (4 by 4 by 4) cube imbedded. How many (3 by 3 by 3) cubes are imbedded in a (4 by 6 by 7) rectangular prism?

2007-01-25 14:17:43 · 2 answers · asked by Quagmire77 1 in Mathematics

My daughter had a nightmare, I looked at the clock as I got out of bed and it read 3:10am. I comforted her for about 3 or 4 minutes. I went back to my room and the clock read 4:15am.
I could swear I did not fall asleep! I was sitting on the edge of her bed.
Has this happened to anyone else?
Any explanations?

2007-01-25 14:16:57 · 8 answers · asked by Lisa the Pooh 7 in Paranormal Phenomena