Science & Mathematics - 27 October 2006

All I can think of is to say is, make x any number and prove the equation, but I don't think that's the correct answer.

2006-10-27 17:20:26 · 9 answers · asked by mare0705 2 in Mathematics

2006-10-27 17:19:21 · 12 answers · asked by toodangerruss 1 in Earth Sciences & Geology

2006-10-27 17:18:45 · 3 answers · asked by r_modak87 1 in Geography

2006-10-27 17:17:09 · 5 answers · asked by ioedvhsd 1 in Astronomy & Space

2006-10-27 17:11:50 · 12 answers · asked by migz_148 2 in Other - Science

f(x)= a[(x+4)^2]-9

what's a if we know f(0)= -4?

2006-10-27 17:06:08 · 4 answers · asked by levine 2 in Mathematics

1. In an investigation, why would you touch a charged balloon with your hands?

my inferences: to check if it is charged.

2. What would happen if you rubbed two identical objects together?

my inferences: they would repel because they both contain the same type of charges and therefore they would not be attracted.

2006-10-27 17:03:52 · 4 answers · asked by Anonymous in Chemistry

2006-10-27 17:03:19 · 3 answers · asked by Heidi 1 in Zoology

okay well if i have 669.97 than whats 10%of that? also if i have 798.98 than times it by .05 what is it?

2006-10-27 17:00:58 · 10 answers · asked by ♥I 'm coco for cocoa puffs♥ 2 in Mathematics

2006-10-27 16:59:13 · 12 answers · asked by Anonymous in Physics

2006-10-27 16:59:07 · 5 answers · asked by sanconogash 1 in Chemistry

I am ten and I want to do a report on the dwarf planets if you have any informaion please give it to me and if not thanks for loking at this.

2006-10-27 16:57:42 · 7 answers · asked by nickieca 3 in Astronomy & Space

2006-10-27 16:57:25 · 3 answers · asked by Sema 3 in Geography

Two cars left a service center at 16:30. One car travelled in one direction at 75km/hr. The other car travelled in the opposite direction at 85km/hr.

a) after how long were they 600 km apart?
b) at what time were they 600 km apart?

Thanks!!!

2006-10-27 16:56:33 · 3 answers · asked by Anonymous in Mathematics

2006-10-27 16:55:57 · 3 answers · asked by Rawr 2 in Engineering

... the Muttabaurrasaurus was 30 million and 20 years old. "How can you be that accurate?" asked a student. "Well I was told it was 30 million years old when I started, and I've been here for 20 years"

What's wrong with this logic?

2006-10-27 16:55:43 · 5 answers · asked by robbob 5 in Physics

Why would a person get shock after walking across a carpet??

2006-10-27 16:53:16 · 2 answers · asked by Anonymous in Chemistry

How are sparks and lightning similar?

2006-10-27 16:48:52 · 5 answers · asked by Anonymous in Physics

I live in Hong Kong and would love to watch this year's Leonids meteor shower in November. Does anyone know where the best place to view it from, which direction to face, and what time the peak would be locally? And approx. how many meteors to expect per hour?
Many Thanks!

2006-10-27 16:46:43 · 2 answers · asked by Tori C 1 in Astronomy & Space

Hi!!solve this prob for me,,plesszzz!!

A boy pushes a ball of mass 3 Kg from rest to reach a velocity of 6 ms-1 in 2s. What is the force applied on the ball?

what's confusing me is, what type of the force that acting on the ball and how to solve the problem. i already know its answer...

2006-10-27 16:46:27 · 5 answers · asked by Maddie 7 in Physics

I need it on Tuesday.. Thanks for looking and answering...

2006-10-27 16:43:57 · 3 answers · asked by Mary Eda 2 in Mathematics

2006-10-27 16:43:44 · 2 answers · asked by sorida 1 in Biology

Given: -Ray PR bisects angle QPS
-Ray PS bisects angle RPT

Prove: Angle QPR is congruent to angle SPT

2006-10-27 16:40:00 · 6 answers · asked by Anonymous in Mathematics

I am drafting a report and need to evaluate the results. I think an RMS value for error is relative to a log scale, thus 1/2 size is 10x better, does anyone know this math relationship?

2006-10-27 16:37:39 · 4 answers · asked by J J California 1 in Engineering

The sun moves fast when it rises from the horizon and also when it sets off. But during the mid noon day even for many hours it moves very less. (Please Note:: The rotation of the earth is constant always) Why does the sun move fast when its close to the horizons??

2006-10-27 16:36:54 · 7 answers · asked by Anonymous in Physics

2006-10-27 16:34:56 · 8 answers · asked by ravindranath v 1 in Physics

An archer is shooting an arrow at a target directly to the west. The arrow leaves the bow at 31.0 m/s. There is a wind blowing 25.0 degrees east of south at 26.0 m/s. The archer forgets to compensate for the wind. What was the velocity (including and and direction) of the arrow?

2006-10-27 16:34:04 · 7 answers · asked by h_oboe 2 in Physics

2006-10-27 16:30:01 · 6 answers · asked by ravindranath v 1 in Physics

I need more help!

2006-10-27 16:27:35 · 6 answers · asked by wxc2005frgz 2 in Mathematics

originally everyone produced all their own goods - then we decided job specialisation [js] would be good, more efficient - same ppl, same hrs produce more - let's call the efficiency factor ef - if js produces 3x more [with same ppl, same hrs], the ef is 3

[js of course necessitated exchange [trade], which led to money, an artifical convenient [divisible, nonperishable, portable] barter item]

the just division of goods before js was automatic: everyone's own work yielded their own pay - is it therefore true that a person's just pay with js is what they would produce before js, x ef?

ie, the just division of goods after js is the same PROPORTION as before js?

therefore the range of pay [ratio of highest to lowest pay] will with justice [= peace] stay the same - ie, if the ratio of highest to lowest production per hour before js is 2, the same ratio will in justice apply after js [& everyone will have ef times as much]?

2006-10-27 16:27:34 · 4 answers · asked by Anonymous in Mathematics