Science & Mathematics - 6 December 2007

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2007-12-06 06:45:51 · 16 answers · asked by Dr D 7 in Geography

how can u get to .. R = [Vi^2(sin2θ)]/g ?

2007-12-06 06:44:06 · 3 answers · asked by Dani 3 in Physics

2007-12-06 06:42:47 · 4 answers · asked by Trevor M 2 in Astronomy & Space

It seems odd to blame droughts, and lower water levels in lakes, streams, and rivers on global warming.
1.) How much water can actually evaporate so far up into the atmosphere that it can actually escape the atmosphere and go into space?
2.) Does it not just crystalize at that altitude and form clouds?
3.) Would it not make more sense to blame it on the surpluss of bottled water, soda, and other beverages we manufacture, and stockpile in warehouses, and stores for purchase?
4.) How many gallons of water do you suppose are currently bottled somewhere that they may not return to the Earth?

2007-12-06 06:41:52 · 3 answers · asked by remember me? 2 in Weather

2sin^2(x) + cos(x) - 1 = 0

thanks!

2007-12-06 06:41:02 · 1 answers · asked by Nate 6 in Mathematics

2007-12-06 06:38:45 · 9 answers · asked by Anonymous in Mathematics

a. 20

b. 100

c.4000+

2007-12-06 06:36:56 · 2 answers · asked by Anonymous in Earth Sciences & Geology

a. Silicate & Non-silicate minerals

b. Carbon-based & Silicates

or c.Metalloid & Non-metalloid

2007-12-06 06:34:50 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-06 06:34:38 · 1 answers · asked by arthur r 1 in Geography

2007-12-06 06:33:02 · 3 answers · asked by Anonymous in Earth Sciences & Geology

change exponential expression to an equivalente expression involving logarithm e^x=23

2007-12-06 06:32:45 · 4 answers · asked by etienne b 1 in Mathematics

A 10 g bullet is fired into a 10 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 cm across the table. The coefficient of kinetic friction for wood sliding on wood is 0.20.

2007-12-06 06:32:19 · 1 answers · asked by mnhw2 1 in Physics

A 10 g bullet is fired into a 10 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 cm across the table. The coefficient of kinetic friction for wood sliding on wood is 0.20.

2007-12-06 06:31:42 · 1 answers · asked by mnhw2 1 in Physics

Find the distance between ( 6, 6) and the line y=2x+4

2007-12-06 06:31:28 · 3 answers · asked by Flirty G 1 in Mathematics

2007-12-06 06:30:27 · 2 answers · asked by hottie101 1 in Earth Sciences & Geology

2007-12-06 06:27:53 · 1 answers · asked by mtb801 2 in Earth Sciences & Geology

I've come to the conclusion that Evolution does exist. It seems that every living being on this earth starts evolving and improving. There are several species that adapted to the enviroment in order to perpetuate, of course that evolution takes time and we can't live to see it happening . The only problem is that with our actual intelligence and power of understanding we can't seem to figure out how exactly our galaxy, our home, our planet came to this stage. All we have are theories. Because evolving takes so much time I'm afraid that the end of our race is inevitable since we won't be able to prevent the catastrophyes that will destroy us. And it's also hard to believe that we are alone in the universe who knows what other species evolved,maybe even faster than us. I must also confes that this whole God thing is the most unreliable source that could of lead to our creation, the only proof is a legend that lies within a book wich might have it's truth but it's also far from reallity.

2007-12-06 06:27:38 · 10 answers · asked by Andrew177 3 in Earth Sciences & Geology

A cylinder contains 270 L of hydrogen gas (H2 at 0.0 °C) and a pressure of 10 atm. How much energy is required to raise the temperature of this gas to 25°C? Units in kJ

2007-12-06 06:25:17 · 1 answers · asked by Eli D 1 in Physics

What advantages did Mendel enjoy by choosing to study the garden pea?

2007-12-06 06:22:50 · 4 answers · asked by navarroben 1 in Botany

http://www.telescope.com/control/product/~category_id=reflectors/~pcategory=telescopes/~product_id=09184

http://www.telescope.com/control/product/~category_id=reflectors/~pcategory=telescopes/~product_id=09708

2007-12-06 06:19:51 · 7 answers · asked by Jay D 1 in Astronomy & Space

log(subscript)3 (normal)x + 4log (subscript)x (normal)3 = 5

2007-12-06 06:17:36 · 8 answers · asked by Anonymous in Mathematics

what about when it passes from water to air?

2007-12-06 06:17:29 · 1 answers · asked by Taaay[: 2 in Physics

2007-12-06 06:16:58 · 3 answers · asked by Beacher 7 in Mathematics

2007-12-06 06:16:24 · 6 answers · asked by cheenarca 3 in Engineering

i need this by monday . 718,900
2. 0.0035

3. 9,364
4. 0.009

5. 12,000
6. 83,470

7. 0.0025
8. 990,000

9. 2,922
10. 0.006

11. 0.05
12. 0.24

13. 368,500
14. 3,981

15. 300,000
16. 0.002

17. 60,000
18. 743,200

19. 7,754
20. 0.059

21. 3,475
22. 930

23. 0.001
24. 0.0016

25. 4.445 × 105
26. 3.65 × 104

27. 8.541 × 103
28. 1.5 × 10-2

29. 4.4 × 105
30. 6 × 10-2

31. 9.2 × 105
32. 2.9 × 105

33. 6.982 × 103
34. 3 × 10-3

35. 2.2 × 10-1
36. 3.793 × 103

37. 6.24 × 104
38. 2.6 × 105

39. 6.4 × 10-3
40. 2.8 × 10-3

41. 4.48 × 105
42. 3.057 × 103

43. 8 × 10-2
44. 2.4 × 105
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 and 43 are supposed to be written in scientific notation and all the others in standard form or in other words in numbers

2007-12-06 06:16:01 · 4 answers · asked by Anonymous in Mathematics

place names and diagrams

2007-12-06 06:15:07 · 6 answers · asked by Anonymous in Geography

A plane flew 600 miles with a 30mph tailwind. On the return trip, the plane flew 600 miles into a 30mph headwind. If the total flying time was 4.5 hours, how fast does the plane fly in still air? PLEASE HELP!

2007-12-06 06:15:02 · 3 answers · asked by Scott 1 in Mathematics

1.) What are the causes/driving forces that affect currents in the ocean?

2.) Do wind-driven currents flow vertically or horizontally?

3.) Are wind-driven currents found near the surface of the oceans or in the deep waters of the oceans?

4.) What function do the wind-driven currents play in the transport of heat energy in the oceans?

5.) Do thermohaline currents flow vertically or horizontally?

6.) Are thermohaline currents surface or deep-water currents?

7.)
A. In what regions of the globe do warm surface currents originate?
B. In what regions of the globe do cold water currents originate?

8.) What are gyres?

9.) In the southern hemisphere gyres flow in what direction?

10.) Why are upwellings important to ocean life?

11.) When we consider currents and their effects on climate, what characteristic of a current is important in affecting climate?

12.) How would a warm current affect the winters of a coastal city at a latitude nearer the polar regions?

2007-12-06 06:12:37 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Is √2 /2 correct and why?

2007-12-06 06:11:58 · 7 answers · asked by Dr D 7 in Mathematics

1. sqrt[18] + sqrt[300] - sqrt[243]
2. sqrt[25y^2z] +sqrt[16y^2z]
3. 4thrt[48]
4. sqrt[x^2+10x+25]

2007-12-06 06:11:07 · 1 answers · asked by coscha y 1 in Mathematics