Science & Mathematics - 4 August 2007

2007-08-04 17:35:55 · 16 answers · asked by Anonymous in Other - Science

...on the ground at the same time as if it were simply dropped directly down to the ground from the firing position? What proves this to be true?

2007-08-04 17:32:15 · 3 answers · asked by Anonymous in Other - Science

Find the exact base of a triangle with a base of square root 30 meters and a height of square root 6 meters

2007-08-04 17:23:36 · 4 answers · asked by jane 1 in Mathematics

self explainitory

2007-08-04 17:21:48 · 3 answers · asked by Andy Terror 2 in Chemistry

If I was standing on a weight scale on a scaffold 10 km above the Earth's surface, would the scale register less. How about 20 km, 30 km, 40 km, etc.
I am sure there is an equation (that would be hard to understand). Is there a site that explains equations (nice and slow) for something like that.

2007-08-04 17:16:19 · 6 answers · asked by the_brain_in_a_vat 1 in Physics

The sound was about 2 seconds behind the light. Sound travels at 769 mph. How far away was it?

(I calculated .47 miles away but that seems entirely incorrect.. I must have messed up.

2007-08-04 17:05:18 · 5 answers · asked by I like pizza 3 in Astronomy & Space

2007-08-04 16:59:06 · 1 answers · asked by shunalr 1 in Chemistry

What is 2 + 2!!! HELP ME PLEASE OH MY GOD I'M GOING TO DIE IF I DON'T GET THIS RIGHT SOMEONE PLEASE HELP!!!!!!!!!!!!

2007-08-04 16:59:00 · 13 answers · asked by Anonymous in Mathematics

1. The speed of a free-falling body is directly proportional to the time elapsed. After 3 seconds, the speed is 29.4 m/sec. Find the speed after 7 seconds

2. A local publishing company has a reserved fund of P2,000,000.00. After several increases in the price of gasoline and some increase in the wages of workers, the company learns that it is losing money at the rate of P25,000.00 a week.
a. How much money would be left in the reserved fund after 4 weeks? 10 weeks?
b. I f F represents the reserved fund and t represents the weeks, write an equation stating the company's financial condition after t weeks.
c. From the equation in (c), calculate the number of weeks left before the reserved fund is drained.


thanks godbless

2007-08-04 16:44:16 · 3 answers · asked by xah8 1 in Mathematics

I am a senior this year...I took chemistry as a Junior: first semester I got an A, second semester I got a B, but it was a HUGE struggle for me and I tried extremely hard...if Chemistry was difficult for me, what will physics be like? I have been on the A honor roll since forever, so will I be okay in this class? I have completed all the algebra classes, prob and stats, and trig, and I will be taking pre calculus at the same time. Any reccomendations?

2007-08-04 16:42:39 · 7 answers · asked by Anonymous in Other - Science

1. Solve the equation: 6x + 5 = 23

2. Solve: 3(y- 7) = y+3

3. Find the domain of y=x+3 if the range is {-1,1,3,5}

4. A lake is 120 fathoms deep. use the fast that there are 6 feet in a fathom to tell the depth of the lake in feet

5. Suppose y varies inversely as x and y= 5 when x=20
find x when y=2
write an equation of the line in slope-intercept form with slope 1/3 that crosses the y-axis at (0, -2)

6. Write 7 cubed using an exponent

7. Simplify: square root 81/225

8. Find the product: -5a 2 (a 2 - 6a + 7)

9. Find the product:(6y + 5)(2y + 3)

10. Factor the polynomial s 2 + 25. if the polynomial
cannot be factored, write prime

11. Find the roots of 2x 2 - 5x + 1 = 0

12. Find the value of c to make g 2 - 18g + c s perfect
square

2007-08-04 16:34:49 · 11 answers · asked by austin 1 in Mathematics

I went to two websites, yahoo and google, and found my home on their satellite website. BUT, the photos from space were very old. I saw a car in my driveway that I sold over a year ago. Are there any satellite websites that are taken "now" of homes and not old satellite photos? Thank you...

2007-08-04 16:28:18 · 3 answers · asked by kingsley 6 in Astronomy & Space

Hardy-Weinberg equilibrium in trisomics: If the frequencies of the F and S alleles at an electophoretic locus situated on chromosome 21 in humans are 0.6 and 0.4, what are the Hardy-Weinberg equilibrium genotype frequencies in a population of Down’s Syndrome sufferers (they have three doses of chromosome 21)?


Random mating: The three alleles at the human ABO blood group have frequencies of about 0.3 A, 0.1 B and 0.6 0 in Caucasians.What is the expected frequency of AA x 00 matings?

2007-08-04 16:27:30 · 1 answers · asked by samantha jacqlynlsy 2 in Biology

2007-08-04 16:18:37 · 5 answers · asked by Sara F 1 in Earth Sciences & Geology

A two-dimensional array of elements arranged in rows and columns is a ____________.

What is _____________?

Thanks for any help guys!

2007-08-04 16:14:02 · 3 answers · asked by Triock91 1 in Mathematics

where? really good question?

2007-08-04 16:09:30 · 12 answers · asked by FukcingAngel 2 in Physics

All my friends in Thailand tell me that Thai gold is far superior to the gold we use in the west. Their gold is more pure, closer to 100%. Even our top gold doesn't come close to theirs.
Is this true? Their gold seems to be a lot darker than ours.
Anybody know the truth??

2007-08-04 16:04:11 · 9 answers · asked by yanni 2 in Chemistry

2007-08-04 16:03:46 · 3 answers · asked by Booyaka 1 in Medicine

if the line L1 passes through(4,0) and(0,7)and L2 passes to(4,-5)and(1,10) find the angle from L1-L2?

2007-08-04 16:02:25 · 3 answers · asked by JESS 1 in Mathematics

Hi,
I'm writing a small essay on the unique city of Venice, Italy. One of the biggest things I liked about it was the fact that they had rivers running through the city where you can get gondala rides in. What's the proper way of saying "the rivers run through the city" is there a word for that kind of water? and what do you call the man who rows the boat on the Gondala rides?

2007-08-04 16:02:21 · 11 answers · asked by NN 2 in Geography

2007-08-04 15:56:43 · 3 answers · asked by vishnu prasanna 1 in Earth Sciences & Geology

Which is a more powerful explosive TNT or Dynamite?

2007-08-04 15:46:17 · 9 answers · asked by goldnboyroy 2 in Chemistry

I feel dirty but it's lightening outside.

2007-08-04 15:43:26 · 11 answers · asked by xcdlee 2 in Weather

I vote for the bear simply because he's got more tools at his disposal than the gorilla.

2007-08-04 15:34:46 · 11 answers · asked by Anonymous in Zoology

2007-08-04 15:34:40 · 1 answers · asked by www_nikhil 1 in Biology

f(x)= 1 over x-2
g(x)= 4 over x

2007-08-04 15:24:41 · 4 answers · asked by Anonymous in Mathematics

How do you solve...?
Sqrt = Square root ^=to the power of (exponant)

This is the problem:

Sqrt(2x+2) + Sqrt(x+2) = 1 can be rewritten as:

A. (Sqrt(2x+2))^2 + (Sqrt(x+2))^2 = 1^2
B. x^2-6x-7=-0
C. Sqrt((2x+2)(x+2))=1
D. 2x^2 + 6x +3=0

A seems right to me, just want to make sure.

Thanks.

2007-08-04 15:23:20 · 4 answers · asked by Anonymous in Mathematics

i am trying to build one on pro/engineer but i am having problems building the actual insides

2007-08-04 15:20:22 · 8 answers · asked by Chris M 2 in Engineering

It is said that gravity is a warping of time space by mass, and that is it this warping that explains why the planets orbit the sun, and why light (which has no mass, or does it?!) is able to bend around massive objects like the sun. Surely if this is a true warping, then the effect of gravity would be instantaneous? (rhetorical) But we know its not, because the speed of light is the fastest anything can happen. So is it because this warping alters the rate of time that the effects of gravity do not appear to be instaneous at the massive object? Is it then if you were to step outside of the warped space time area that things would appear faster, perhaps even instantaneous!? Or is it that as a creation of the universe we will never see or even detect such instantaneous effects because we're governed by the same laws such as speed of light? Maybe a universe with a greater maximum speed could detect these 'instantaneous' effects and inform us of their speed, should they be able to exist!

2007-08-04 15:18:07 · 7 answers · asked by silverfox 3 in Physics

You can add gas also to the list, if at all it can be compared in understandable terms

2007-08-04 15:13:40 · 0 answers · asked by coolguy_ind74 2 in Physics