Science & Mathematics - 2 October 2006

i need this for a project do 2morrow

2006-10-02 11:39:20 · 5 answers · asked by Dr.Gangster 1 in Biology

2006-10-02 11:39:11 · 12 answers · asked by Anonymous in Physics

What time is required to reduce velocity from 157km/hr to 75km/hr?
How long does it travel during that time?

I got 108.2 seconds, and 3.21KM...

Yet on a similar question of..
Car travels at 65km/hr, brakes decelerate at 6m/s^2. To stop, it'll take 3.009s and 27.16M til it stops moving.. I'd like verification on this and help with the one above:D

2006-10-02 11:38:38 · 4 answers · asked by pugfug90 2 in Physics

3x + 3y = 0
y = 4x – 10

2006-10-02 11:36:45 · 9 answers · asked by Anonymous in Mathematics

14 g of Magnesium when heated in air produces 21 g of product. What percent (by weight) of magnesium is present in the product? answer in percent?

PLZ help. i dnt understnad this question.
THANKS!!!!!!!!

2006-10-02 11:36:02 · 2 answers · asked by Anonymous in Chemistry

so i have an idea to make a hover boad heres my plan

get some newdinium (i know wrong spelling) magnets and place 5 that are capable of holdig 55lbs on a deck and 5 of the same drilled into the ground. they will be faceing so the polarities are not connectiong but are actually forcing each other away..... does this sound like a plan ? o should i not waste the money ? i have tried it on semi small scale with some regular magnets and the only probem seems to be balance. so any ideas to improve mine ? or do you think i should go along with it..... i think i will do it not matter what i just wanna hear some ideas thanks

2006-10-02 11:34:45 · 5 answers · asked by broken record 1 in Physics

bob washed a red honda civic in 10mins and 56 secs and lee washed a black honda civic in 13mins and 18secs.how long would it take for them to wash a yellow honda civic together? there is only 1 of each:1 hose,1 bucket,1 sponge,etc..when they are washing the yellow car.

(this is a question that i've always been wondering about)

2006-10-02 11:30:47 · 5 answers · asked by kogmu 3 in Mathematics

2006-10-02 11:30:01 · 26 answers · asked by Wassiem R 1 in Zoology

2006-10-02 11:29:57 · 11 answers · asked by Anonymous in Chemistry

2006-10-02 11:29:31 · 6 answers · asked by Anonymous in Mathematics

2006-10-02 11:29:03 · 3 answers · asked by Anonymous in Mathematics

2006-10-02 11:28:32 · 1 answers · asked by Anonymous in Mathematics

A model airplane of mass 0.75 kg is flying at constant speed in a horizontal circle at one end of a 30 m cord and at a height of 18 m. The other end of the cord is teathered to the ground. The airplane circles 4.4 times per minute and has its wings horizontal so that the air is pushing vertically upward.


I don't need anyone to solve the question for me. How would I find the tension of the cord? I have already drawn a free-body diagram

2006-10-02 11:28:29 · 2 answers · asked by brianp297 2 in Physics

They skipped from Apollo 1 to Apollo 4.

2006-10-02 11:26:56 · 5 answers · asked by cubscaps33 5 in Astronomy & Space

2006-10-02 11:24:56 · 6 answers · asked by colinbrowning 1 in Earth Sciences & Geology

I'm doing a written lab report (kind of a project) but it's due tommorrow!
Its basically about pendulums. A pendulum is.... well...Ok. It just like if you have a string attached to something and then you let it loose. It swings back and forth. That is a pendulum.
The Lab Report is about testing three different hypotheses. One is aoubt how the heavier the pendulum, the longer the period. Period equal time/swings. The next is about the longer the string, the longer the period. The last one is about the angle that the pendulum is released. The higher the angle, the longer the period.
SO. I need an appropriate title and I'm counting on all you ever so ingenious people to come up with one. It doesn't have to be long, but not too short. I'm only need a title so DON't go the extra mile to blah blah. In theory, good title+why that title = best answer.

2006-10-02 11:24:28 · 7 answers · asked by Anonymous in Engineering

Presuming you were wearing a heat resistant suit.

2006-10-02 11:21:41 · 10 answers · asked by James B 2 in Earth Sciences & Geology

What is the perimeter of an equilateral triangle whose height is 2radical3?

2006-10-02 11:21:36 · 6 answers · asked by princesschristine91 1 in Mathematics

In a right triangle ABC angleC=3y-10, angleB=y+40, and angleA=90. What type of right triangle is triangle ABC?

(1) scalene
(2) isosceles
(3) equilateral
(4) obtuse

2006-10-02 11:19:04 · 7 answers · asked by princesschristine91 1 in Mathematics

cistern is a cylinder with radius 3.2 feet and depth 15.4 feet. Find the capacity (volume) of this cistern to the nearest gallon. (1 cu. ft = 7.48 gal, so multiply the volume by 7.48)

2006-10-02 11:18:00 · 4 answers · asked by Anonymous in Mathematics

Martha makes a commission of 8% on all her cosmetics sales. How much did she make in commissions on $1,650?

2006-10-02 11:15:47 · 2 answers · asked by Anonymous in Mathematics

2006-10-02 11:13:10 · 1 answers · asked by Michelle L 1 in Engineering

by what factor is the average kinetic energy of Neon changed?

2006-10-02 11:12:03 · 2 answers · asked by Anonymous in Chemistry

-the cell part that controls most of the cells activitives

2006-10-02 11:10:54 · 9 answers · asked by .::Princess::. 1 in Biology

611,053 in word forum

2006-10-02 11:10:49 · 4 answers · asked by arief 1 in Mathematics

A drop of iodine accidentally falls on a piece of paper. Predict the color change, if any, and provide an explanation for your prediction.

2006-10-02 11:10:28 · 5 answers · asked by many men 1 in Biology

-the cell part that gives the cell shpae and holds the lytoplam.

2006-10-02 11:09:49 · 9 answers · asked by .::Princess::. 1 in Biology

A student heats a test tube containing a large amount of protein and Biuret reagent. She notices a color change from violet to blue. Explain why heating causes a color change.

2006-10-02 11:09:34 · 1 answers · asked by many men 1 in Biology

Find the solutions of the equation that are in the interval [0, 2*Pi); separate your answer

2006-10-02 11:07:49 · 3 answers · asked by grugger165 1 in Mathematics

Ok am only 12 but i am in my school's advanced algebra classes, and i was just wondering what calculus was apparently im going to be having those classes in about 3-4 years. Pleases explain in good detail

2006-10-02 11:06:52 · 3 answers · asked by sw33tdanyelle 2 in Mathematics