Science & Mathematics - 1 February 2007

2007-02-01 12:23:19 · 4 answers · asked by Lim S 3 in Biology

AMC: American Mathematics Competition

2007-02-01 12:23:07 · 4 answers · asked by the poo goo 2 in Mathematics

what kind of diagram would you use

2007-02-01 12:22:20 · 11 answers · asked by Candy 4 in Engineering

ticket has a length of 4mm more than its width. if width had been increased by 1mm and the length has been increased by 4mm. the ticket perimeter would equal to 30mm. what are the actual dimensions of the ticket??? which is the world record for smallest ticket.

2007-02-01 12:22:12 · 3 answers · asked by jennifer h 2 in Mathematics

I'm not too sure how to approach this question:

A string is supposed to vibrate at 200 Hz. It actually vibrates at 205 Hz. What percent should the tension in the string be changed to correct the frequency?

Thanks.

2007-02-01 12:22:08 · 1 answers · asked by nazzyonenine 3 in Physics

Twice the greater of two consecutive odd integers is 13 less than 3 times the lesser. Find the integers.
********Thank you in advance for all of your help!!

2007-02-01 12:18:59 · 10 answers · asked by Anonymous in Mathematics

I'm an average student, B level...not a straight A..do I have a chance to find a good job?

2007-02-01 12:18:40 · 6 answers · asked by Megan 2 in Engineering

please solve and(simplify) show your work:

5a+3b-4-7a-6b

-8y+4z+2y-7-9z-2y

8b-9-b+7b+4-9

6y+z-7y-5

-7(3-2x)+8x

-5(3y-7)-2(6+4y)

-(4x-3)+2x

7x-(8-x)+12

solve each simpified expression in #1-8
if a=2 b=-3 x=3 y=-2 z=4

2007-02-01 12:18:16 · 10 answers · asked by Anonymous in Mathematics

this is called,

a) ionic bonding
b) covalent bonding
c) polar covalent bonding
d) delocalization of the electrons
e) a dipole moment

2007-02-01 12:17:51 · 2 answers · asked by insaneaznskillz 1 in Chemistry

2007-02-01 12:17:45 · 13 answers · asked by Broken B 1 in Earth Sciences & Geology

tom must build a shed. he wants the length to be 3ft greater than width and the perimeter is 22ft. width???

2007-02-01 12:17:34 · 4 answers · asked by jennifer h 2 in Mathematics

2007-02-01 12:17:31 · 3 answers · asked by Dave 4 in Mathematics

2007-02-01 12:17:04 · 4 answers · asked by Red 1 in Mathematics

2007-02-01 12:16:44 · 3 answers · asked by jasmin c 1 in Chemistry

What are 2 (for each) general structural similarites between:

Nematodes & Annelids?
Annelids & Mollusks?

I've been searching through my textbook, but they don't explain organism structure in detail. I haven't found any useful info on the web so far either .All I keep finding are differences. = (

I would really appreciate your help. Thanks! = )

2007-02-01 12:16:13 · 1 answers · asked by Miss*Curious 5 in Biology

2007-02-01 12:16:01 · 8 answers · asked by Jeanne L 2 in Zoology

2007-02-01 12:15:00 · 4 answers · asked by Jordan & Jacob H 1 in Geography

an 80 kg fighter pilot goes into a dive, accelerating downward at 22 meters per second squared. find the magnitude of the downward force that the back of the seat exerts on the pilot.

2007-02-01 12:14:59 · 6 answers · asked by argentina_mandy20 1 in Physics

2007-02-01 12:14:19 · 3 answers · asked by Anonymous in Zoology

Not freezing rain, but regular rain. I looked at the current weather for Oshawa, ON, Canada. Temp is 27°F with "light rain", not freezing rain. How is this possible?

2007-02-01 12:13:20 · 7 answers · asked by Anonymous in Weather

a 1.5 kg block of lead is heated from 25 degrees C to 43 degrees C. if this requires 3430 joules of heat energy, what is the specific heat of the block of lead?

2007-02-01 12:11:38 · 2 answers · asked by argentina_mandy20 1 in Physics

It needs a feature that will allow the pressure to be adjusted from 10 psi to 60 psi.

2007-02-01 12:11:02 · 2 answers · asked by wideopen1967 1 in Engineering

2007-02-01 12:10:16 · 7 answers · asked by excruzan 1 in Weather

Get your checkerboard and place one grain of wheat on the first square. Then place two grains of wheat on the next square. Then place four grains on the third square. Continue this until all 64 squares are covered with grains of wheat.” As he had just harvested his wheat, Mr. Crane did not consider this much of an award, but he soon realized he made a miscalculation on the amount of wheat involved.

a) How much wheat would Mr. Crane have to put on the 24th square?

b) How much total grain would the traveling salesman receive if the checkerboard only had 24 squares?

c) Calculate the amount of wheat necessary to fill the whole checkerboard (64 squares). How much wheat would the farmer need to give the salesman? Please provide the answer in either scientific notation, or calculate and show all 20 digits.

2007-02-01 12:09:45 · 4 answers · asked by Lana G 1 in Mathematics

What is a number that is divisible by 9 but not divisible by 3?????

2007-02-01 12:09:42 · 8 answers · asked by Anonymous in Mathematics

If the area of the rectangle is 56 units, what is the length of the rectangle?

2007-02-01 12:09:03 · 5 answers · asked by Nelly 2 in Mathematics

2007-02-01 12:08:01 · 7 answers · asked by 123 2 in Physics

Use the geometric sequence of numbers 1, 1/3, 1/9 , 1/27… to find the following:
a) What is r, the ratio between 2 consecutive terms?

b) Using the formula for the sum of the first n terms of a geometric series, what is the sum of the first 10 terms? Carry all calculations to 6 decimals on all assignments.

c) Using the formula for the sum of the first n terms of a geometric series, what is the sum of the first 12 terms? Carry all calculations to 6 decimals on all assignments.

d) What observation can make about the successive partial sums of this series? In particular, what whole number does it appear that the sum will always be smaller than?

2007-02-01 12:07:48 · 2 answers · asked by Lana G 1 in Mathematics

Why or why not?

2007-02-01 12:07:38 · 4 answers · asked by night_train_to_memphis 6 in Earth Sciences & Geology

Possibly planning a trip for the last week in August. Would like to know when hurricane season starts and ends for Corpus Christi, TX?! :)

2007-02-01 12:07:27 · 3 answers · asked by dc4everandever 1 in Weather