Science & Mathematics - 10 December 2006

to use a torque wrench the setting has to be 13kgs but the wrench is only in newton metres? what is the new setting?

2006-12-10 08:57:54 · 7 answers · asked by Anonymous in Engineering

Your average (arithmetic mean) score on four exams is 82. If your professor drops the lowest exam score then your average will be 86. What was your lowest score? and what equation did you use

2006-12-10 08:57:51 · 6 answers · asked by Brandy B 1 in Mathematics

2006-12-10 08:57:16 · 4 answers · asked by krnbellax3 3 in Chemistry

2006-12-10 08:52:52 · 3 answers · asked by Anonymous in Biology

How many planets tilt on their axis in a fashion similar to the earth during their orbit of the sun?

2006-12-10 08:52:39 · 6 answers · asked by sodaorpop 2 in Astronomy & Space

what is the emperical formula of a compound that contains 29% Na, 41% S, 30% O by mass?

2006-12-10 08:52:23 · 2 answers · asked by Rachel 2 in Chemistry

I am not looking for the solution for each. But I am looking for an explanation as to what the differences are in solving between these two problems. Thank you.

2006-12-10 08:51:49 · 6 answers · asked by hi :) 2 in Mathematics

for ap-biology plant research project

2006-12-10 08:51:07 · 2 answers · asked by taylor hildebrand 1 in Botany

2006-12-10 08:50:16 · 9 answers · asked by Anonymous in Geography

Examples would be nice.

2006-12-10 08:48:49 · 2 answers · asked by hi :) 2 in Mathematics

2006-12-10 08:48:41 · 4 answers · asked by AngryAmerican82 3 in Medicine

2006-12-10 08:48:31 · 4 answers · asked by Sunshine 2 in Geography

i havee nooo idea!!
helpp!!

2006-12-10 08:47:35 · 5 answers · asked by Anonymous in Physics

2006-12-10 08:47:06 · 3 answers · asked by peace 1 in Mathematics

I've taken the logs:
log y = log 1 - log (x-a)(x-b)
so
log y = -log(x-a)(x-b)
so
log y = -log(x-a) - log(x-b)
not sure if this is correct so far, if yes, still can't see how it fits into y =mx+c
Please help!!!

2006-12-10 08:45:55 · 3 answers · asked by andrew p 1 in Mathematics

2006-12-10 08:42:52 · 8 answers · asked by Mark R 1 in Geography

today (at 600/630 am eastern standerd time) was a planetary alignment, i was wondering what planets, any pics, and how long the alignment will last. if you could include links to pics and sites of the alignment thatd be great! thanks!!!

2006-12-10 08:42:45 · 2 answers · asked by spruded 3 in Astronomy & Space

2006-12-10 08:41:57 · 11 answers · asked by calypsocaper 2 in Mathematics

A string of negligible mass is wound around a uniform disk of radius R and mass M. The disk is released from rest with the string vertical and its top end tied to a fixed bar. Find the acceleration of the center of mass of the disk.

I know you have the 2 forces acting on the disc, mg acting down, and the force of the torque caused by tension of the string on the disc. I know F=ma and Sum of torques=0 and I for a disc is 1/2(MR^2). My problem is what to do next and thus solving this problem. Thank you for your help.

2006-12-10 08:41:51 · 1 answers · asked by Anonymous in Physics

ok here is an easy algebra question( for some)

1(a+3)+2=4(a+5)+6
very simple, solved in steps...

step1:1(a+3)+2=4(a+5)+6
step2:1a+4+2=4a+9+6
step3:1a+4+2-1a=4a+9+6-1a
step4:4+2=3a+9+6
step5:4+2-2=3a+9+6-2
step6:4=3a+9+4
step7:4-4=3a+9+4-4
step8:0=3a+9
step9:0-9=3a+9-9
step10:-10=3a
step11:-10/3=3a/3
step12:a=3.33( im just going out to hundreth decimal, dosent really matter since 3.33 represents 3.3333333.... or 3.33 repeating )

its a very simple proccess
that was a problem with low numbers

the challenge is to solve this:
21(a+9)=13(a+8)+1
what does "a" equal?

2006-12-10 08:40:24 · 8 answers · asked by patdog 3 in Mathematics

2006-12-10 08:37:49 · 5 answers · asked by Anonymous in Medicine

homework assignment. due monday.

2006-12-10 08:37:46 · 2 answers · asked by Anonymous in Engineering

say you calculate the NRE for a given diameter, velocity, density and viscosity but you then want to use those same values and calculate a new pipe diameter for a new velocity, is the NRE that you calculated initially what you would use to find the new diameter for a new velocity?

2006-12-10 08:37:34 · 2 answers · asked by Anonymous in Engineering

2006-12-10 08:35:55 · 6 answers · asked by dennisjns 1 in Astronomy & Space

In Europe the cycles are different than the US. Besides this, they also use two wire systems with an earth ground. How could I wire a three wire US electrical system to work with a two wire European system to get the 250V? What other diferrences would occur other than perhaps the motor running faster because of the cycle difference?

2006-12-10 08:35:24 · 2 answers · asked by Anonymous in Engineering

2006-12-10 08:35:06 · 6 answers · asked by Sweety 1 in Astronomy & Space

Can you please help me identify the reaction for these chemical formulas, such as single replacement, double replacement, sythesis, decompisiton and more

1) Aluminum+ Iron (III) Chroide--->
2) Calcium Hydroxide---->
3)Water(use H2O) + Sulfur Trioxide--->
4) Sodium Choride + Magnesium Sulfate--->
5) Nitric Acid + Sodium Hydroxide--->
6) Butane (C4H10) + Oxygen--->
7) Copper (II) Carbonate--->
8) Silver + Oxygen--->

2006-12-10 08:34:43 · 2 answers · asked by not857 1 in Chemistry

2006-12-10 08:34:16 · 6 answers · asked by Astrojaxx 1 in Mathematics

There are 4 jugs. One jug can hold 9litres and is full. The other three are empty and can hold 7, 4, 2 litres. How can I get three litres in three of the jugs?

2006-12-10 08:32:52 · 11 answers · asked by marcoporres 4 in Mathematics

I place two cups of water outside one with salt and another one without salt, and i want to find out wich one evaporates faster.

2006-12-10 08:32:51 · 6 answers · asked by Anonymous in Chemistry