Science & Mathematics - 29 August 2007

If the force of repulsion between two protons is equal to the weight of the protron, how far apart are the protrons?
Mass of protron is: 1.6 x 10(-27) kg and the Charge of the protron is: 1.6 x 10(-19) C
PLEASE SHOW WORK AND PLEASE HELP!!!

2007-08-29 13:49:34 · 2 answers · asked by Nate 2 in Physics

1. sqrt72
2. sqrt1/5

Thank you

2007-08-29 13:49:25 · 9 answers · asked by vadataborn 2 in Mathematics

2007-08-29 13:42:05 · 4 answers · asked by quizzical 1 in Mathematics

wtf?

2007-08-29 13:39:14 · 2 answers · asked by Dobe777 2 in Biology

1. radial cleavage
2. spiral cleavage
3. indeterminate cleavage
4. determinate cleavage
5. enterocoely
6. schizocoely
7. blastopore becomes the mouth
8. blastopore becomes the anus




Select your answer from A-E below

A. 1, 3, 5, 8

B. 2, 3, 6, 7

C. 8

D. 1, 6, 7,

E. None of 1-8 is correct

2007-08-29 13:34:50 · 1 answers · asked by East link 3 in Biology

OKay im trying to do a calculus problem and it says to find the fourth derivative of (2 + 3x)^4 and i got the answer to be 1944. But these are the choices...

A)0
B)4!(3)
C)4!(3^4)
D)4!(3^5)
E)4!(2+3x)

2007-08-29 13:33:55 · 8 answers · asked by Anonymous in Mathematics

2007-08-29 13:33:25 · 7 answers · asked by glagh 1 in Engineering

1. Parallel evolution is seen in similar habitats on isolated continents
2. Embryos show characteristics of ancestors during development
3. Relatedness of species across continents is correlated with time of geological separation
4. Homology is seen in most structures of closely related forms



Select your answer from A-E below
A. 1 C. 3 E. 1, 3
B. 2 D. 4

2007-08-29 13:31:43 · 2 answers · asked by East link 3 in Biology

why it is necessary to have some system for classifying living things?...

2007-08-29 13:31:32 · 3 answers · asked by -<<chimay>>- 1 in Biology

?

2007-08-29 13:29:09 · 2 answers · asked by Dobe777 2 in Biology

y= -x²+9x-3 and the line y=3x
I got the anwser 3+/- √9, but how do I apply this to the equations?

Show/explain please.

2007-08-29 13:28:24 · 1 answers · asked by Anonymous in Mathematics

2007-08-29 13:27:28 · 4 answers · asked by muhammad h 1 in Other - Science

A police car is at rest when a speeder traveling at a constant 110km/h passes by. The police car takes off in hot pursuit the instant the speeder passes by. It catches up to the speeder in 700m, maintaining a constant acceleration.

2007-08-29 13:27:27 · 1 answers · asked by mm 2 in Physics

2007-08-29 13:22:10 · 3 answers · asked by tammy m 1 in Mathematics

2007-08-29 13:12:19 · 5 answers · asked by -<<chimay>>- 1 in Biology

2007-08-29 13:08:29 · 2 answers · asked by tchoxi2000 1 in Mathematics

significant figures chapter... using a $2000 balance we found mass to be 75.375 g. using less expensive balance we found it to be 75.4 g. was there any befefit of using a $2000 balance to measure the mass of our sample? what precision would be adequate in a balance for this experiment assuming no other apparatus was changed? i am at a loss on just this one question. please help me!!! i have been out of high school for 10 years and am going back for nursing after a 5 year stroll along an arts degree!

2007-08-29 13:06:04 · 3 answers · asked by Anonymous in Chemistry

Are the following ratios in proportion? (Show working)

i. 7: 9 and 10: 14
ii. 6:14 and 9: 21

2007-08-29 13:05:55 · 3 answers · asked by sarah_miss92 1 in Mathematics

2007-08-29 12:59:14 · 2 answers · asked by Norm 1 in Medicine

y= -x²+9x-3 and the line y=3x
I got the anwser 3+/- √9, but how do I apply this to the equations?

Show/explain please.

2007-08-29 12:59:06 · 2 answers · asked by Anonymous in Mathematics

2007-08-29 12:58:20 · 3 answers · asked by Mr. Smith 5 in Mathematics

Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. What will be the cars stopping distance for (1) dry pavement and (2) wet pavement?

2007-08-29 12:45:51 · 1 answers · asked by Pascal 4 in Physics

Can anyone tell me what these are and how they are done? Or know a good site that has all this info? Hazardous waste landfill, waste treatment plant, deep-injection well, and incinerator.

2007-08-29 12:44:56 · 3 answers · asked by feastofmagic03 2 in Engineering

1. w - 8=h
2. 5 + 2f=g
3. xyz - 3=d
4. wb - a=0
5. c = bk - 5
7. t + ab=0
8. 9x - 5y=4
9. y=3(a+b)
13. p=2(l+w);l
14. d=rt;r
15. 2a+b=c;b
16. I=prt;p
17. 1/2x=y;x
18. 2(x+a)=c;a
19. m+n+p=q;m
20. c+d/2=a;c
21. mnp=q;m
22. y=mx+b;m
23. 2r+3s=1;r
24. 3a=2b;b
25. A=1/2bh;b
26. v=lwh;h
27. c2=a2+b2;b

2007-08-29 12:44:10 · 2 answers · asked by Yoh 1 in Mathematics

0.400 respectively. (1) What is the acceleration of the object if a 250-N horizontal force is applied to the box? (2) What is the acceleration if the applied force is 235-N?

2007-08-29 12:42:22 · 2 answers · asked by Pascal 4 in Physics

One of the fundamental laws of motion states that the acceleration of an object is directly proportional to the resultant force on it and inversely proportional to its mass. From this statement, determine the dimensions of force.

Whats the answer?

2007-08-29 12:40:32 · 2 answers · asked by Brittney C 1 in Physics

2007-08-29 12:38:49 · 4 answers · asked by lizknicker 2 in Earth Sciences & Geology

surface is 0.69, what horizontal force is required to get the crate moving?

2007-08-29 12:38:28 · 2 answers · asked by Pascal 4 in Physics

2007-08-29 12:36:47 · 3 answers · asked by ~~~Tara~~~ 1 in Weather

2007-08-29 12:35:45 · 8 answers · asked by jamie d 2 in Physics