Science & Mathematics - 3 December 2006

find the derivative. (differenctiate)

2006-12-03 18:54:47 · 6 answers · asked by pago 1 in Mathematics

2006-12-03 18:54:20 · 2 answers · asked by REZA F 1 in Zoology

It is from theory of colours.

2006-12-03 18:49:34 · 12 answers · asked by Marina S 2 in Chemistry

i'll give best answer if its good

2006-12-03 18:48:03 · 4 answers · asked by sligons 1 in Physics

give reasons for your answers

2006-12-03 18:42:45 · 20 answers · asked by shabbarboy1991 2 in Physics

2006-12-03 18:40:02 · 3 answers · asked by paredesal2910 1 in Physics

A ball is being released onto a ramp that is on a table that ends where the ramp does. When the ramp stops, the ball will fly into the air into a can.

Using this equation: ∆y = vy i t + ½ gt2 (the gt is raised to the 2 power, not times two), what is the time it would take, t, for a ball to fall from the bottom end of the ramp and land into a can that is 10.5 cm tall

g= -9.81m/s
vx = .63m
the distance from the ramp to the can is 1.75 m

2006-12-03 18:39:48 · 1 answers · asked by susie q 2 in Physics

A ball is being released onto a ramp that is on a table that ends where the ramp does. When the ramp stops, the ball will fly into the air into a can.

Using this equation: ∆y = vy i t + ½ gt2 (the gt is raised to the 2 power, not times two), what is the time it would take, t, for a ball to fall from the bottom end of the ramp and land into a can that is 10.5 cm tall

g= -9.81m/s
vx = .63m
the distance from the ramp to the can is 1.75 m

2006-12-03 18:36:25 · 2 answers · asked by susie q 2 in Physics

2006-12-03 18:35:33 · 4 answers · asked by bhupesh g 1 in Physics

Please give me the internal and external area of the dome ?

2006-12-03 18:35:25 · 3 answers · asked by THANGAVELU S 1 in Mathematics

I have a cable, its black, it fits in the jack on the bottom of my calculator, but it does not match the picture of the "black cable" the TI website shows, in fact it is more like the "gray cable", it is not a USB connection rather a 9pin serial or something along those lines. No matter what I do I can not get my computer to recognize the calculator. What is wrong?

2006-12-03 18:32:29 · 1 answers · asked by Mikezoola 2 in Engineering

2006-12-03 18:28:43 · 3 answers · asked by Brian 1 in Botany

...or no antimatter at all? Have we found antimatter? If so, how? Considering it would not last?

2006-12-03 18:28:42 · 8 answers · asked by Anonymous in Physics

2006-12-03 18:26:49 · 5 answers · asked by anonymous 4 in Physics

and what happens when you have four fractions to order in size, can you do the common denominator for all the four fractions

2006-12-03 18:24:07 · 8 answers · asked by Anonymous in Mathematics

the velocity v of a falling object is directly proportional to the time t of the fall. If, after 2 seconds, the velocity of the object is 64 ft per second, what will its velocity be after 3 seconds?

2006-12-03 18:22:37 · 5 answers · asked by Penny C 1 in Mathematics

i was just wondering if the universe may take on a common center of mass, such that spae-time is bent around it causing it to be closed like a giant sphere. Furthermore could this somehow show how space between massive objects appears to expand?

2006-12-03 18:20:11 · 2 answers · asked by william k 2 in Astronomy & Space

Find x,y,z

10x+2y-7z=8
-14x-2y-13z=9
-6x-15y+7z=6

2006-12-03 18:19:04 · 6 answers · asked by John W 1 in Mathematics

2006-12-03 18:15:20 · 3 answers · asked by jerr s 1 in Biology

HBr & CH2CH2
HBr & HI
I2 & NO3
Cl2 & CH4

if u can, can you give an explaintion

2006-12-03 18:14:49 · 2 answers · asked by come by...stay far 1 in Chemistry

Girls in residential college complain to Maths prof of lack of sleep.

Prof writes down the problem on the board
S L E E P N I G H T. He assigns a digit to each alphabet.
0 1 2 3 4 5 6 7 8 9

hE ASKS EACH GIRL STUDENT TO CHOOSE ANY 3 CONSECUTIVE NUMBERS (E.G 012, 345 ETC) AND REPEAT THE 3 DIGIT No. when in bed.
Next day he asks them to reverse the No chosen on day one and repeat the new number.
day 3 he asks them to subtract day 1 No from Day 2. 9ignore -ve sign) and repeat the new number in bed.
day 4 he asks them to reverse the day 3 No and repeat this number in bed.
Day 5 he asks the students to add day 4 and day 5 number and repeat this number in bed.
Day 6 he asks the class and enquires if the sleep problem solved. All the 40 girls reply negative.
Prof says the problem is compounded. So multiply the day five number by 40 and replace the digits by alphabets written on board, e.g 0 is S, 1 is L so on and so forth.
Got the answer?(try any)

2006-12-03 18:10:54 · 5 answers · asked by Anonymous in Mathematics

its here but i dont know how to graph it.. http://public.fotki.com/wazzzzaaaas/mark/mathxl.html

2006-12-03 18:08:32 · 2 answers · asked by Anonymous in Mathematics

which is better for communication?

2006-12-03 18:07:43 · 3 answers · asked by raj m 1 in Engineering

2006-12-03 18:06:52 · 11 answers · asked by Anonymous in Astronomy & Space

Which of the following are TRUE regarding buffers? (Check all that apply):
A 60/40 mixture of 1M ammonia and 1M ammonium nitrate will make a buffer.
Buffers help keep the pOH constant.
Man-made buffers were first invented by Robert Boyle.
A buffer in chemistry is a machine used to polish shoes and equipment.
Buffers are often present in biological systems.
Buffers help keep the pH constant.
A 50/50 mixture of 1M acetic acid and 1M sodium hydroxide will make a buffer.
pH buffers are added to shampoos and other cosmetic products.
Buffers are a mixture of an acid and its conjugate base in roughly equal proportions.
A 50/50 mixture of 1M acetic acid and 1M sodium acetate will make a buffer.

2006-12-03 18:02:16 · 2 answers · asked by UJ 3 in Chemistry

I always wondered why everything we eat turns yellow when we Sh!t. Does anybody have an answer for this ?? plz help me get this tickler off my cranium kit !!

2006-12-03 17:59:34 · 8 answers · asked by Ankush G 1 in Medicine

are we rotating around some greater magenetic force...like a "super sun?"

2006-12-03 17:50:43 · 12 answers · asked by Anonymous in Astronomy & Space

2006-12-03 17:42:12 · 1 answers · asked by dnyanesh k 1 in Engineering

complete and balance this equation

H3PO4(aq) + Ca(OH)2(aq) --->?

i know that H3PO4 is the acid and that calcium compound is the base. the end result is water + some type of salt, but i'm stuck because i have absolute no idea how to combine the two. please help me, thank you

2006-12-03 17:37:10 · 2 answers · asked by gets flamed 5 in Chemistry

2006-12-03 17:36:20 · 12 answers · asked by tom b 1 in Chemistry