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muffin10

## Chromosome Number Alteration

Organisms have different chromosome numbers. I'm wondering how this can evolved. If an organism has something that occurs to change its chromosome number (splitting, agglomeration, whatever) how could...
soapnumpty

## Excel Help

Hi I'm trying to enter a LOOKUP formula which will look up one of three lists, depending on the answer entered in a certain cell. For instance if cell B11 says X I want it to look up from list 1 If...
Tweed

## Oo Programming (Java) - Abstract Class

An abstract class cannot be instantiated. So, is the sole purpose of an abstract class to be a base class for an inherited class?
Wong

Revisiting maths I did many years ago and have forgotten how to do questions such as this one. Please help. The point P is at the foot of the perpendicular from point (1,1,9) to the plane 2x+y-z=6....
Zyzzyva

## How Long Will It Take A Steel Ball To Fall One Meter Starting From Rest?

I have no formula for this; I'm working off prior knowledge and general intuition. So far I have: 9.8 m/s^2 (acceleration in free fall)/2 = 4.9 m/s (average speed over 1 second). So in one second the...
malhen

## Old Printing Terms

Could anybody familiar with printing terminology help me with this abstruse question? What is the name of the print symbol used throughout the 1662 Book of Common Prayer to indicate an italicised...
tezestwing

## how can I burn a song music only

Hi I have a cherished song being sung on a DVD how can I transfer the song only onto a CD to play on my audio player Thanks for any help
Peter Pedant

## Tangents Normals and parameters

A curve is given by x=t2, y=t3. Find the eqn of the tangent with parameter u and the eqn of the normal to the curve at a pt whose parameter is v Find the parameter of the point where the tangent at...
Peter Pedant

## Maths again Exponential expansion

the question is find a and b in termns of n if the expansions of (1+x)n and exp ( ax/(1+bx)) are the same up to x2 (1+x)n is easyy 1 +nx + n(n-1)/2! x2 etc but the exponent : 1 + ax/1+bx +...
GK Fanatic

## email contacts

How do I stop other recipients of an email sent to a number of people adding themselves to my address book, its driving me nuts !! Many thanks in advance !
callofduty123

## HELP! DEAD SHREW IS PREGNANT, WHAT DO WE DO?!

My cat has just dragged in a shrew,was half alive when she let go (a gift) we could see it was about to die so tried to make it comfortable but it died within minutes of her bringing it in. My...
Rev. Green

## Why are fundamental particles the same?

When a high-energy photon forms an electron/positron pair the electrons always have the same mass, charge, etc. Why? If you sent dough to several locations to be made into loaves, the loaves would all...
crazy legs

## Help with Quantum Mechanics.

Hey, If anyone can help me with this it'd be much appreciated, tnx. *Q*:A hydrogen atom is in the third excited state. It makes a transition to a different state and a photon is either absorbed or...
Rasman

## Is this correct?

http://oi55.tinypic.com/34g4oky.jpg Would they discharge disproportionally?...
wilfred_cho

## Two vectors A and B have precisely equal magnitudes. For the magnitude of A + B to be 78 times greater than the magnitude of A - B, what must be the angle between them?

not 130° not 178°
jimzee4

## Maths question

Factorise a^2(b-c)+b^2(c-a)+c^2(a-b) ^2 means squared Any ideas?...
danchc

## Atoms: Why there are differnet numbers of Neutrons and Protons in stable elements.

According to the American Nuclear Society website: "a Nucleus that has more Neutrons than Protons is unstable, and such Nucleus will try to become stable by giving off particles or packets of...
dimamuzhetsky

## What is the nature of the gravitational force?

2 separate matter particles attract each other physically.Why so?Please explain me the phenomena.Thank You
Peter Pedant

## Maths: parametric eqns of a parabola

A variable chord of a parabola y2=4ax is of constant length 2a Prove that its midpoint lies on a curve given by (y2-4ax)(y2+4a2)+4a2=0. [S level 1965)
tpreece01

## Access Query and % tracking

Hi all, I've got an Access table with 2 fields. [Name],[Consistency]. Consistency is a percentage. numbers are logged to two decimal places with the "%" sign displayed after it. I'm trying to query...

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