# Questions Asked onMay 12, 2007

1. ## French

Could someone please explain to me verb inversion? I never get confused in French, but this verb inversion stuff is really confusing. It just seems so pointless! Please help, Thanks, brie Thank you for using the Jiskha Homework Help Forum. If you are doing

2. ## psychology

List some common neurotransmitters and describe their effect on behavior The first two sites have a list of neurotransmitters and the effects. The other sites explain effects in detail. http://web.indstate.edu/thcme/mwking/nerves.html

3. ## mathematics -logs

which three statements are true? a) if x= -10^4 then log 10 = -4 b)if x= 2^8 then log 2x = 8 c) log2 2= 4 d) if x= 3 then log10 3=x e) log 10 256-2log 10 a/log 10 b f)log 10 (a-b)= log 10 a/log 10 b g) the gradient of the graph of y= 2x^x at x= 2 is 2e^e

4. ## maths

how do i solve the following equation? 4 - x = 2 - (3 - 2x) remove ( ) by distributing - sign 4-x=2-3+2x then add -4 to both sides to get -x = -4 + 2 -3 + 2x then -x = -5 +2x then add 2x to both sides x=-5

5. ## Emission Spectrum of hydrogen ...CHEM

Can someone please explain the emissiom spectrum of hydrogen? THose lines represent the energy released by the electron when going from one orbital (energy level) to a lower orbital. The difference of energy levels exactly corresponds to the energy in the

6. ## Chemistry

When we mix NaOH and H2SO4 we get the equation OH-(aq) + H+(aq) --> H2O(l) and if we mix H2CO3 and NaOH we get the equation 2OH-(aq) + H2CO3 --> 2H2O(l) + CO3-2(aq) Why aren't the two equations the same? ie only one mol of NaOH reacts in the first equation

7. ## norwalk

historical events of daoism IV History of Daoism Print this section Daoism gradually changed from the philosophy of a small number of sages to a widespread popular religion followed by numerous individual believers and by many groups of monks and lay

8. ## Punctuating Sentences

Without a doubt, cramming for the test. This is not a complete sentence. The phrase "cramming for the test" is either a gerund or praticipial phrase, but there's no subject or verb here. When you decide how you'll make this into a complete sentence, please

9. ## CHEMISTRY

Calculate Kp at 500 deg C for the reaction- 4No2+6H2O 4NH3+5O2. The value for Kc at 500 deg C is equal to 0.456. Kc = KpRT-delta n where delta n = ngas products - ngas reactants

10. ## Calculus HELP plz

Find the area of the surface obtained by rotating the curve y=sqrt(4x) from x=0 to x=1 about the -axis. about the x-axis. surface area= ⌠ 2pi * f(x)*sqrt[1 + (f'(x))^2] dx from a to b ⌡ it's been 45 years since I used that formula. I ended up with the

11. ## math

could somebody tell me the answer or order of operations to this calculation. 3cos(2 x 2) thanks. I assume you meant 3cos(2x²) pick your x square it multiply it by 2 take its cosine multiply by 3 press the = sign on your calculator after each step to

12. ## Math

I can't to get this problem. Perform the indicated operation 11 -6/7 -7 Can someone help me???

13. ## Math

I can't to get this problem. Perform the indicated operation 11 -6/7 -7 Can someone help me??? It's easier to perform the 11-7 first. 11-7 is 4. Now, take 4 of something. Cut one of them up into 7 pieces and take away 6 of the 7 pieces. What are you left

14. ## Science

Tereestrial plants, Aquatic Plants & Insectivorous Plants? Thank you for using the Jiskha Homework Help Forum. Here are some sites on your subject: 1. http://www.honda-e.com/ 2. http://www.uky.edu/Ag/Horticulture/pls220/aquatics/aquatics.html 3.

15. ## Science

Aquatic Birds- their habitats & habits Thank you for using the Jiskha Homework Help Forum. Here are some sites for you: 1. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15093476&dopt=Abstract 2. (Broken Link Removed) 3.

16. ## Math

Information about 3 Indian & 3 foreign mathematicians. You'll find information about dozens of mathematicians -- from India and other places in the world -- in these sites. http://www-groups.dcs.st-and.ac.uk/~history/BirthplaceMaps/Countries/India.html

17. ## math

I never got the fractions, Determine the maximum and minimum values of the following set of numbers. 2,-8,1/2,-5/3,9/4,-7,-73/9 I think the answer is -73/9 and 1/2 am I right if not can anyone tell me what I am doing wrong?? change them all to have a

18. ## History

I'm doing a project on Medieval nights- please help! How did chivalry reflect medieval culture especially religon? Its due on Monday and i still have HEAPS to do!!!!! Please help me! You mean Medieval knights, right? If you spell it wrong during a search

19. ## math

Which three options are true about motion in a straight line. A. A particle which moves at an increasing velocity has a constant acceleration. B. If two particles always have the same velocity as each other, their separation does not change. C. A particle

20. ## math

The amounts of oil pumped from an oil well in each of the years 2001 to 2004 formed a geometric progression with common ratio 0.9. The amount pumped in 2001 was 100000 barrels. Calculate in which year the amount pumped will fall below 5000. The amounts of

21. ## maths

Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give

22. ## math

The table shows the depth (d metres) of water in a harbour at certain times (t hours) after midnight on a particular day. Time t (hours) Depth d (m) 0 3.0 1 3.3 2 4.2 3 5.6 4 7.2 5 8.2 6 9.0 7 8.9 8 8.1 9 7.3 10 5.6 11 4.3 12 3.5 13 3.1 Use the regression

23. ## math

The table shows the depth (d metres) of water in a harbour at certain times (t hours) after midnight on a particular day. time t (hours) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 and the in the next column corresponding to the figures above is depth d (m) 3.0 3.3

24. ## math

which three statements are true? a) if x= -10^4 then log 10 = -4 b)if x= 2^8 then log 2x = 8 c) log2 2= 4 d) if x= 3 then log10 3=x e) log 10 256-2log 10 a/log 10 b f)log 10 (a-b)= log 10 a/log 10 b g) the gradient of the graph of y= 2x^x at x= 2 is 2e^e

25. ## maths

which three statements are true? a) if x= -10^4 then log 10 = -4 b)if x= 2^8 then log 2x = 8 c) log2 2= 4 d) if x= 3 then log10 3=x e) log 10 256-2log 10 a/log 10 b f)log 10 (a-b)= log 10 a/log 10 b g) the gradient of the graph of y= 2x^x at x= 2 is 2e^e

leaning ladders- a nasty quartic Two ladders leaning in opposite directionsbetween two walls.Each ladder touching the base of the opposite wall Ladders are 40 ft and 60 ft respt. cross at hy of 10 ft , h, what is the distance tween walls w ?

27. ## math help

Posted by grant on Saturday, May 12, 2007 at 9:20am. The table shows the depth (d metres) of water in a harbour at certain times (t hours) after midnight on a particular day. time t (hours) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 and the in the next column

28. ## math

which 3 are correct a) if x= -10^4 then log10 x = -4 b)if x= 2^8 then log 2x = 8 c) log2 2= 4 d) if x= 3 then log10 3=x e) log 10 256-2log 10 16=0 f)log 10 (a-b)= log 10 a/log 10 b g) the gradient of the graph of y= 2e^x at x= 2 is 2e^2 h) the gradient of

29. ## astronomy

so basically Pluto is a planet? basically , yes. There is some controversy about this. Since this is not my area of expertise, I searched Google under the key words "Pluto planet" to get these possible sources:

30. ## Electrochemistry

I have an electrochem based question. I'm trying to solve for E* based on a chart in my book. I know the equation for solving this is E*= E*ox + E*red. The chart in my book gives a list of reactions and a E*red value. My teacher told us that the greater,

31. ## Biology

Frogs Question: What is it called when reproductive adults maintain larval characteristics? Thank you. http://en.wikipedia.org/wiki/Paedomorphosis

32. ## maths

The ‘body mass index’ is used to find the body weight that is appropriate for a person’s height. It is calculated using the formula. I = W (I = W divided by H squared) H 2 Where I is the body mass, W is the person’s weight in kg, and H is the

33. ## Science

Why is it impossible to have an Arctic Circumpolar Current? http://www.whoi.edu/science/PO/arcticgroup/projects/proshjohnson-two-regimes.pdf

34. ## Electrochem

A baby's spoon with an area of 6.25 cm^2 is plated with silver from AgNO3 using a current of 2.00 A for two hours and 25 minutes. a) If the current efficiency is 82.0%, how many grams of silver are plated? b) What is the thickness of the silver plate

35. ## maths

Sixty people were asked how many films they had seen in the past year. The results are shown in table 1. Table 1: number of films seen by a group of people during the past year No of film seen(x)0 1 2 3 4 5 6 7 8 N0 of people(f) 23 12 9 6 3 4 2 0 1 What

36. ## Chemistry

When asked to name all of the ions and molecules present in a 0.1 mol L-1 solution of CH3COOH, why are there OH- ions present if the equation is CH3COOH(aq) + H2O(l) --> CH3COO-(aq) + H3O+(aq) ? The water ionizes in such a manner that the product of the

37. ## math

describe (in words) two different sets of people containing you as a member. describe (in words) the complement of each set. describe what people are not in either the orininal set or the complement set You might think of various categories that include