Science & Mathematics - 7 November 2007

log base 4 of (4x) - log base 4 of (x/4) = 3



Sorry, it's kind of hard to type without html.

Thank you

2007-11-07 15:20:11 · 4 answers · asked by Shane 2 in Mathematics

2007-11-07 15:12:25 · 2 answers · asked by ballin 1 in Biology

1)the sum of two numbers is twice their difference. the larger number is 6 more than twice the smaller. Find the 2 numbers.

2007-11-07 15:11:58 · 2 answers · asked by Anonymous in Mathematics

I cant really get the right answer for this question!

can someone plz answer this??

here is my question

Explain how the equation E=mc^2 is consistent with the Law of Conservation of Energy.

thx

2007-11-07 15:10:56 · 5 answers · asked by Anonymous in Physics

I ask the question, what is the value q of the exponential function q^x such that its derivative with respect to x is equal to itself?

Okay... dont just spout out the mindless answer "oh, q equals Euler's constant, 'e'"... not good enough.

'e' was originally defined as the base of an exponential function ( e^x ) such that it had a slope of 1 at x=0. Thats is what e is based on... its only coincidence that its derivative equals itself throughout its domain. That was proven as a consequence of its definition.

My proposition is, what if ∂/∂x e^x did not equal e^x... regardless of the fact that it has a slope of 1 at x=0.

How would mathematicians have determined (or proven to exist) that one special number, the base to an exponential function, whose derivative was equal to itself?

2007-11-07 15:06:12 · 4 answers · asked by Anonymous in Mathematics

instructions on how to use? how to maintain the appliance?

2007-11-07 15:03:14 · 3 answers · asked by rev p 1 in Engineering

1.6A09E..., 1.BB67A..., 2.3C6EF..., ?

I'm only looking for 5 decimals places.

Good luck.

2007-11-07 15:02:07 · 4 answers · asked by whitesox09 7 in Mathematics

Which one of the following depends on the atmosphere exerting pressure?

(1) A ball falling to the ground
(2) Drinking through a straw
(3) The spray from a can cola
(4) Bath water emptying down a plug hole

The answer is (2) Drinking through a straw...I don't understand why that is the answer instead of the other 3 alternatives..Could anyone please explain the reason to me on why drinking through a straw depends on the atmosphere exerting pressure? Hopefully you could also explain to me what the other 3 options depends on (instead of them depending on the atmosphere exerting pressure). Thanks.

2007-11-07 15:01:28 · 3 answers · asked by ♪£yricảl♪ 4 in Physics

can you tell me and others what the first and second laws are of "thermodynamics"? And since energy can neither be created or destroyed but despersed or used in different ways, can you give me any examples where energy, instead of despersing, has regenerated naturally to a measurable viewable charge?

2007-11-07 14:58:50 · 8 answers · asked by nuff said 6 in Paranormal Phenomena

Two plants having red flowers are mated. When their F1 offspring are studied, it is found that 95 have red flowers and 31 have white flowers. What is the genotype of the parents and diagram a cross to support you answer.

Well, i attempted this problem but i don't know how to approach it. I'd appreciate your help-- thank you so much!

2007-11-07 14:58:40 · 4 answers · asked by Anonymous in Biology

Everything is made up of atoms. Compared to the size of an atom the space between the electrons, protons and neutrons are huge distances, which gives an atom a lot of space within its own physical structure. Each atom has space between it, as atoms do not touch each other no matter what the material they represent, be it water, a wall, or a rock.

Why, then, with so much space between atoms and space within atoms, am I unable to simply walk through a wall, or anything else, for that matter?

2007-11-07 14:53:58 · 4 answers · asked by Anonymous in Physics

2007-11-07 14:48:05 · 7 answers · asked by C 1 in Engineering

what is meant by cell work?

i dont understand the question. please help

2007-11-07 14:46:30 · 2 answers · asked by Anonymous in Biology

2007-11-07 14:45:40 · 4 answers · asked by Anonymous in Chemistry

2007-11-07 14:43:39 · 12 answers · asked by kiwi 1 in Physics

2007-11-07 14:43:17 · 13 answers · asked by Anonymous in Paranormal Phenomena

given what you know about disease transmission, explain why this is common?

2007-11-07 14:42:35 · 7 answers · asked by Anonymous in Biology

A boat travels 24 m.p.h. in still water. It takes 5 hours to travel downstream & 7 hours to travel upstream. How fast is the water moving?

2007-11-07 14:42:25 · 2 answers · asked by malissa h 1 in Physics

2007-11-07 14:41:12 · 6 answers · asked by Anonymous in Astronomy & Space

A 12250 N car traveling at 46.0 km/h rounds a curve of radius 2.00x10^2 m.

(a) Find the centripetal acceleration of the car.

(b) Find the force that maintains centripetal acceleration.

(c) Find the minimum coefficient of static friction between the tires and the road that will allow the car to round the curve safely

2007-11-07 14:38:56 · 2 answers · asked by Asdasd A 1 in Physics

2007-11-07 14:37:31 · 26 answers · asked by Deenie 6 in Other - Alternative

2007-11-07 14:37:13 · 5 answers · asked by DeeDee 1 in Astronomy & Space

Compare and contrast a theory and law. Give one way they are alike and one way they are different.

2007-11-07 14:36:18 · 5 answers · asked by ? 3 in Astronomy & Space

2007-11-07 14:35:03 · 12 answers · asked by Plea_of_insanity 5 in Geography

From the equation F = mv2/r, the tension in a 1 m length of string that whirls a 3 kg mass at 4 m/s in a horizontal circle is calculated to be 48 N. Calculate the tension for the following cases.


(a) twice the mass

(b) twice the speed

(c) twice the length of string (radial distance)

(d) twice mass, twice speed, and twice distance all at the same time

2007-11-07 14:34:58 · 1 answers · asked by Asdasd A 1 in Physics

does anyone know a website where i can get a map or does any know anything about this question?

2007-11-07 14:34:36 · 3 answers · asked by JEFF J 1 in Geography

what does the cell do with energy released in atp breakdown?

2007-11-07 14:33:53 · 3 answers · asked by Anonymous in Biology

2007-11-07 14:33:47 · 4 answers · asked by PhucNguyen90 2 in Engineering

If the length of the tube is 4 meters, how many resonances would you observe when a tuning fork of frequency 256 Hz is used?

2007-11-07 14:33:29 · 2 answers · asked by Anonymous in Physics

their zenith.

2007-11-07 14:33:14 · 3 answers · asked by TicToc.... 7 in Astronomy & Space