Science & Mathematics - 21 September 2007

rectangular shape

2007-09-21 05:26:54 · 7 answers · asked by karalyn b 1 in Mathematics

2007-09-21 05:26:13 · 14 answers · asked by Philidor 5 in Zoology

2007-09-21 05:25:18 · 8 answers · asked by Anonymous in Astronomy & Space

You might think this question should be phrased, “What” not “who” (should we believe.) I know that the "What" question has been posted. This question is different and my purpose is simple; to find out WHO is a more reliable source of information… so...

WHO should we be most inclined to believe…
…Scientists or Bible-Belt fundamentalists?

2007-09-21 05:24:12 · 23 answers · asked by Dr. Trevor 3 in Biology

A.) to provide usable nitrogen for the plants.
B.) to change ammonia into nitrogen plants.
C.)to provide ATP for the plants.
D.) to prevent reproduction.

2007-09-21 05:22:29 · 4 answers · asked by Anonymous in Biology

If Maria hit 8 home runs in 15 softball games, then she should hit 24 home runs in 45 games.

2007-09-21 05:21:52 · 2 answers · asked by Anonymous in Mathematics

240 pounds of fertilizer/6 lawns

2007-09-21 05:19:46 · 4 answers · asked by Anonymous in Mathematics

I bought a second hand, mini sun bed to sustain a few bonsai trees, this winter, indoor. The sun bed has a build in transformer to power 6X40W fluorescent lamps, thus a 240W system (220V~50Hz). Unfortunately the UV-lamps do not emit the best spectrum needed for cultivation and growth. The lamps I need to replace the UV-lamps with, has to be 590mm in length, but the highest wattage, available in this length is 20W. I want to know if I am going to blow the 20W lamps if I replace the old 40W lamps. If so, why?

2007-09-21 05:18:59 · 3 answers · asked by matroosje 2 in Engineering

2007-09-21 05:18:43 · 2 answers · asked by John 1 in Other - Science

The ratio 5 3/5 to 2 1/10

2007-09-21 05:15:16 · 4 answers · asked by Anonymous in Mathematics

I'm currently doing a report and wanted to have a 3d plot of one of the things in my report, but it consists of two seperate defined layers where one is at a higher depth than the other. I was wondering if i could make something like this in excel useing their surface plot tool. (i want to be able to compair the dip of the lower surface with respect to the upper surface)

2007-09-21 05:13:47 · 4 answers · asked by , 2 in Physics

i was wondering why ice floates.

2007-09-21 05:12:11 · 14 answers · asked by jordan_white69 3 in Other - Science

The circuit has two resistors in a series with a measurement of 65Mohms and 5 Mohms. With a capacitor with a measurement of 150 mV.

What is the total conductance of the circuit?
what is the total current that flows around this circuit?

2007-09-21 05:09:00 · 4 answers · asked by Anonymous in Other - Science

The winner of an election for class president won by a vote of 8 to 5 with 992 votes. How many votes did the loser get?

2007-09-21 05:06:45 · 5 answers · asked by Anonymous in Mathematics

I am a student studying biology and chemistry at university to get a degree in both subjects. is it worthed to be a scientist?
what jobs does this career offer? is this and exciting career? after all the study?

2007-09-21 05:06:22 · 3 answers · asked by Maria Camilleri 1 in Other - Science

I'm unsure of where to began... any help out there?

2007-09-21 05:05:58 · 1 answers · asked by Anonymous in Physics

Areoplanes not included!

2007-09-21 05:03:54 · 21 answers · asked by Anonymous in Geography

How do lasers read CD’s

2007-09-21 05:00:48 · 3 answers · asked by HONG 2 in Engineering

2007-09-21 05:00:03 · 19 answers · asked by Anonymous in Astronomy & Space

Please explain in simple, easy to understand terms for a stupid person like me.

2007-09-21 04:59:37 · 3 answers · asked by Bob 2 in Mathematics

2007-09-21 04:58:57 · 3 answers · asked by sportsfan6702002 1 in Physics

I need the exact steps and some helpful tips to solve this equation y+ 10=x for y. I hear that you gotta isolate the variable. What does that mean? I need exact steps please. I really appreciate all help. Thank you everyone

2007-09-21 04:57:11 · 5 answers · asked by Luvon 3 in Mathematics

2007-09-21 04:54:39 · 19 answers · asked by Riiich 1 in Astronomy & Space

Describe what Features (physical traits) you have seen that differ among birds?

2007-09-21 04:50:04 · 4 answers · asked by G 1 in Zoology

2007-09-21 04:45:51 · 4 answers · asked by Detroit Ciudad 2 in Mathematics

2007-09-21 04:41:53 · 6 answers · asked by dennis g 1 in Biology

the second of two numbers is 4 more than the first. The sum of the numbers is 56.
If x represents the first number, and y represents the second number, what are the numbers?

If you answer, can you show me HOW you got your answer?

2007-09-21 04:38:13 · 3 answers · asked by emzahlee 2 in Mathematics

2007-09-21 04:32:25 · 4 answers · asked by Anonymous in Engineering

2007-09-21 04:27:23 · 1 answers · asked by Mike 2 in Chemistry

2007-09-21 04:19:45 · 9 answers · asked by Anonymous in Mathematics