Science & Mathematics - 21 January 2007

When solving the equations 5^x=20, will you get the same answer when you use common logarithms as when you use natural logarithms? Explain?

2007-01-21 12:28:22 · 4 answers · asked by Anonymous in Mathematics

Assume all gases are measured at 0 degrees Celsius and 1 atm

2007-01-21 12:26:24 · 5 answers · asked by tortuga_gp08 1 in Chemistry

at 10 a.m and traveling at 55 miles per hour. How long will it take Mrs. Jones to catch up with Mr. Jones?

8.5 hours
8 hours
11 hours
7 hours
9 hours

2. How long does it take for Mrs. Jones to drive before Mr. Jones catches up with him?

2007-01-21 12:25:51 · 7 answers · asked by shariff B 1 in Mathematics

How would the number of particles of two gases compare if their partial pressures in a container were identical??

2007-01-21 12:24:59 · 1 answers · asked by alli p 1 in Chemistry

A solution contains 5.36 g of an unknown electrolyte. If 50.0 mL of water was used to make the solution, and if the solution freezes at -5.35°C, calculate the molecular weight of the compound and identify the unknown. Assume that the unknown is formed by elements from groups IA and VIIA.

2007-01-21 12:24:19 · 1 answers · asked by feelinglikeastar 2 in Chemistry

I would like to see some illustrations on these giant bugs. I've found a little bit of written information, but nothing exciting, and not one photo when researching on the internet. I would think this would be a fascinating topic and that there would be alot of research material out there, but I'm not finding any! Anyone know of any?

2007-01-21 12:24:01 · 2 answers · asked by paintgirl 4 in Other - Science

2007-01-21 12:23:26 · 3 answers · asked by Phillip V 1 in Mathematics

2007-01-21 12:23:23 · 2 answers · asked by Anonymous in Chemistry

a. are eukaryotic
b. are photosynthetic
c. have true roots
d. are mostly multicellular
e. have true leaves

2007-01-21 12:22:25 · 6 answers · asked by Anonymous in Biology

x^2+2x-35=0

2007-01-21 12:21:40 · 3 answers · asked by Anonymous in Mathematics

There is no bad weather coming, none has passed, but I see specks of red on the radar.

2007-01-21 12:20:30 · 4 answers · asked by JBWPLGCSE 5 in Weather

h(x)=3x^4+8x^3+9x^2+32x-12

2007-01-21 12:20:28 · 4 answers · asked by Anonymous in Mathematics

2007-01-21 12:20:14 · 4 answers · asked by Nina T 1 in Chemistry

Could u please explain in detail how to factor the following this problem and how you got the answer like what are the steps thx and this is an example given although i do not know how the answer was got 2x^2 - 5x -3= (2x +1 ) (x- 3)



1.) 3x^2 + 10x - 8

2007-01-21 12:19:51 · 3 answers · asked by Anthony V 1 in Mathematics

because i have a zippo but it doesnt have fluid and i dont have lighter fluid for it

2007-01-21 12:19:24 · 4 answers · asked by Anonymous in Chemistry

I noticed when I watch the radar on my computer that even if it's raining hard outside there isn't anything showing on the computer.

2007-01-21 12:18:17 · 5 answers · asked by JBWPLGCSE 5 in Weather

however, seaweeds:
a. are photosynthetic
b. are heterotrophic
c. are prokaryotic
d. have true leaves and roots
e. are uncellular

2007-01-21 12:17:35 · 3 answers · asked by Anonymous in Biology

Does sodium attract or release electrons? How many electrons are involved in the transfer?

2007-01-21 12:17:21 · 5 answers · asked by Anonymous in Chemistry

Find the length of each side of the rectangle so that it has the given perimeter. p=50

w=2x-5

L=x

2007-01-21 12:17:11 · 4 answers · asked by Anonymous in Mathematics

One displacement vector A has a magnitude of 3.43 km and points due north. A second displacement vector B has a magnitude of 9.45 km and also points due north. Explain how you get your answer.

(a) Find the magnitude and direction of A-B (in Km)

(b) Find the magnitude and direction of B-A (in Km)

2007-01-21 12:16:52 · 6 answers · asked by uscgurrl21 1 in Mathematics

Find the length of each side of the rectangle so that it has the given perimeter. p=50

2x-5

x

2007-01-21 12:16:31 · 2 answers · asked by Anonymous in Mathematics

2007-01-21 12:16:21 · 5 answers · asked by waynethewild 1 in Astronomy & Space

What is a primary source? pleaz provide examples:)

2007-01-21 12:14:31 · 3 answers · asked by Anonymous in Geography

Ok, please help me determine the oxidation #s for :
(also, include how you got your answer please)

NaOH

and

Na4 As O4
I assigned the following oxidations #s to the one above:
Na---> +1
As---> +4
O4---> -2
Please tell me if I'm correct.

2007-01-21 12:13:26 · 1 answers · asked by A 2 in Chemistry

2007-01-21 12:13:07 · 3 answers · asked by sweetandlow16530 1 in Chemistry

2007-01-21 12:12:33 · 5 answers · asked by Phillip V 1 in Mathematics

okay, this problem has been really frustrating for me. I don't get it at all, so can someone please clearly explain to me how to get the answer?

-A boat travels 16 km downstream in 2 hours. It then travels the same distance upstream in 8 hours. Find the speed of the boat in still water and the speed of the current.

2007-01-21 12:11:14 · 5 answers · asked by Carley 3 in Mathematics

2007-01-21 12:09:49 · 4 answers · asked by houstonman20042002 1 in Mathematics

i really dont understand lol

2007-01-21 12:09:10 · 4 answers · asked by La Eztrellita 1 in Mathematics

hey guyz, how do i mine 4 fish?

2007-01-21 12:09:10 · 4 answers · asked by dantesblaze 1 in Zoology