Science & Mathematics - 28 October 2007

refering to plants and how this process is unfolded.

2007-10-28 04:37:09 · 1 answers · asked by Anonymous in Earth Sciences & Geology

Astronauts in the space shuttle in orbit experience weightlessness. Does this mean that there is no gravity in space? Explain what is going on.

2007-10-28 04:34:48 · 4 answers · asked by Anonymous in Physics

Is the following trinomial a perfect square? x^2 + 18x + 81

2007-10-28 04:31:49 · 9 answers · asked by Anonymous in Mathematics

2007-10-28 04:30:04 · 4 answers · asked by Kristyn 2 in Chemistry

1) Prove that sinx +cosx=sin2x+cos2x
2) How many odd numbers less than 1000 can be formed by using the digits 0, 3, 5, 7 ,if the repetition of the digits are not allowed?

2007-10-28 04:30:03 · 5 answers · asked by Muralidharan kg 1 in Mathematics

I am going to be having surgery and the doctor im going to has prescribed me to take Prednisone 6 pills a day for 3 days before the surgery. It IS an oral steriod and im worried that it will lower my sperm count? So my question is does Prednisone make males Sterile?

2007-10-28 04:28:30 · 9 answers · asked by Soran 4 in Medicine

2007-10-28 04:28:10 · 2 answers · asked by suyin_12 1 in Biology

25cm3 of a solution of an acid HxA containing 0.1 mol dm-3 of the acid in each 1000cm3 of solution reacts with 75cm3 of a solution of 0.1 mol dm-3 NaOH. What is the value of x?

2007-10-28 04:27:59 · 1 answers · asked by Anonymous in Chemistry

I dont know how to do this, please show work

Find all answers
sin(2theta)+3cos(theta)=0

2007-10-28 04:23:59 · 4 answers · asked by ted 1 in Mathematics

2 years ago, Chicago was cold. Now it is pretty hot. It is on average 85 degrees in the summer and 40 degrees in the winter. Couple of years ago, the average temp. was 75 degrees in the summer and in the winter it was 20 degrees. How did that happen? What happened to cities you guys are in?

2007-10-28 04:21:25 · 6 answers · asked by Joe Kim 2 in Weather

can anyone give a detail reason why the US overtook the Europe in the area of industrial production , tech advancement and industrial research . why did the UK all fall behind . what where the leading factor that worked against this countries and what are the factors that worked in the US favor .
what lessons can regions like Africa , Latin America and Asian countries learn from this . Pls we will need a well detailed answer if possible with statistical data backing your argument

Good luck

2007-10-28 04:16:18 · 5 answers · asked by computer geek 1 in Engineering

How did our (ships) landed on the moon? and how did they take off? while there is no airport neither a base for lanching..I think they've never been to the moon...Yet

2007-10-28 04:14:58 · 8 answers · asked by Adnan C 1 in Astronomy & Space

What kind of climate do pussy willows like? I'm going to root one in the backyard...

2007-10-28 04:12:19 · 1 answers · asked by Insert nickname here 2 in Botany

The Local lottery has 39 numbers and if you match all 5 which they select you win the jackpot. The odds of winning the jackpot are 1 in 575,757, can someone show me how these odds are figured?

2007-10-28 04:11:06 · 4 answers · asked by Anonymous in Mathematics

PLEASE HELP ME WITH MY MATH I'M STUCK !!!



Explain in sentences what you must do in order to find the answer of a power with a negative exponent. Use 4^-3 and (2/3)^-5 to explain what you must do and show the extended multiplications. Give the final answer for each

2007-10-28 04:04:32 · 7 answers · asked by Tionna's mama 1 in Mathematics

https://tycho-s.phys.washington.edu/cgi/courses/shell/common/showme.pl?courses/phys114/autumn07/homework/04d/2blocks_incline_NWT/5.gif

The figure shows two identical blocks tied together with a string which passes over a pulley at the crest of the inclined planes, one of which makes an angle q1 = 29° to the horizontal, the other makes the complementary angle q2 = 61°.
a) If there is no friction anywhere, with what acceleration do the blocks move?

a = m/s2
b) If each block has a mass m = 0.7 kg, what is the tension in the string while they are both moving?

T = N
c) Now suppose the coefficient of sliding friction between the blocks and planes is µ = 0.03. With what acceleration do the blocks move in this case?

af = m/s2

2007-10-28 04:03:39 · 1 answers · asked by Anonymous in Physics

2007-10-28 04:02:53 · 1 answers · asked by Terri L 2 in Biology

i really would like to no what state the chattochee river begins in

2007-10-28 04:02:37 · 3 answers · asked by Anonymous in Geography

take out the largetst common factor

1) 10584h(superscript3)k - 1680hk(superscript4)

thanks

2007-10-28 04:01:51 · 2 answers · asked by marc e 1 in Mathematics

how workshop practice helps the young engineer in preparing for industrial engineering

2007-10-28 04:01:43 · 2 answers · asked by Blessing N 1 in Engineering

how do i find the mode numbers:10,8,12,5,10,12,10,18

2007-10-28 03:59:36 · 9 answers · asked by donnelly2008 2 in Mathematics

math open responce question

2007-10-28 03:52:12 · 18 answers · asked by kayycakess 3 in Mathematics

could u explain please !!

2007-10-28 03:50:22 · 2 answers · asked by Anonymous in Physics

B4A9 = 22921

What is the solution?

Please use the 7-3-2-1 code.

2007-10-28 03:45:48 · 6 answers · asked by MATHy lass 2 in Mathematics

I don't get this math pre-algebra crap can someone help me?
Okay so i used to get this and then we had this horrible sub that got me all confused i dont no wat im doing anymore lol i get things fast but i have to get it 100% any ways the questions are to simplify these expression

1. 2g + 3(g + 5)

2. -3z + 8(z + y)

3. 4m + 3d - 5m + d

4. t - 3 + 2(t + 2)

5. 8z + 8y + 3z

6. t - 3t + 2t + 4

7. 18 + 6(9k - 13)

8. r + 3 - 6r + r

9. -4(a + 3) - a

10. 4m + 3 - 5m + m

11. 3(g + 5) + 2g

12. 2b - 6 + 3b - b

13. -5 + 3x + 3 + 2

14. 4(w + 2x) + 9(-4w)

15. 3(2n +4) - 2(3n + 6)

16. 4a - 3 + 5a

17. 2r - 5 + 6r

2007-10-28 03:42:22 · 5 answers · asked by naaman a 1 in Mathematics

fill in the blank.
thanks.

2007-10-28 03:41:39 · 2 answers · asked by timm 1 in Chemistry

2007-10-28 03:38:15 · 4 answers · asked by Anonymous in Earth Sciences & Geology

what is the last point in space .is there an area beyond all the planets and galaxies??what is the end point

2007-10-28 03:38:12 · 17 answers · asked by mojokravin 2 in Astronomy & Space

Okay so i used to get this and then we had this horrible sub that got me all confused i dont no wat im doing anymore lol i get things fast but i have to get it 100% any ways the questions are to simplify these expression

1. 2g + 3(g + 5)

2. -3z + 8(z + y)

3. 4m + 3d - 5m + d

4. t - 3 + 2(t + 2)

5. 8z + 8y + 3z

6. t - 3t + 2t + 4

7. 18 + 6(9k - 13)

8. r + 3 - 6r + r

9. -4(a + 3) - a

10. 4m + 3 - 5m + m

11. 3(g + 5) + 2g

12. 2b - 6 + 3b - b

13. -5 + 3x + 3 + 2

14. 4(w + 2x) + 9(-4w)

15. 3(2n +4) - 2(3n + 6)

16. 4a - 3 + 5a

17. 2r - 5 + 6r

Well i know how to do some of them but others im just lost with the signs and stuff thx every1

2007-10-28 03:32:44 · 9 answers · asked by naaman a 1 in Mathematics

2007-10-28 03:19:04 · 10 answers · asked by fire 2 in Earth Sciences & Geology