Science & Mathematics - 18 July 2007

2007-07-18 19:09:30 · 6 answers · asked by i-sena 1 in Physics

Complete the statement.
13 oz = _____g

A.) 364
B.) 390
C.) 360
D.) 156

13 oz = 368.543801 grams+ would the answer be none of the above or would i round up to 390 ? I'm confused.

2007-07-18 19:03:41 · 8 answers · asked by Anonymous in Mathematics

Find y' if (x+y)^2 = (2x - y)^3

After all the calculations my answer was for the derivative is 2(x+y) - 3(2x - y)^2.

Now i did this with respect to y but now that i look at it i dont know if i was suppose to take the derivative with respect to x or y...any ideas?

2007-07-18 19:03:17 · 3 answers · asked by Anonymous in Mathematics

I need help understanding how to figure DRT for microbiology. ex.What is the minimum time that contact lenses with a 10^2 bacteria should be soaked in chlorhexidine .001% that has a DRT value of 383.3 minutes. DRT is the time it takes to kill 90% of bacteria present.I AM NOT GOOD WITH MATH...need simple explanation that I can apply to future problems, PLEASE

2007-07-18 18:56:00 · 1 answers · asked by Anonymous in Mathematics

Estimate 121% of 600
a.) 75
b.)750
c.)72
d.) 720

121% of 600 = 726 so the answer would be D?

2007-07-18 18:55:48 · 6 answers · asked by Anonymous in Mathematics

2007-07-18 18:54:17 · 6 answers · asked by baby166_99 2 in Mathematics

How do I solve this with an equation.The city zoo had 3.5 visitors on Saturday as it did on Monday. The difference in the number of visitors was 630. How many people visited the zoo on Saturday and Monday? Please help!

2007-07-18 18:48:41 · 2 answers · asked by manlisten 1 in Mathematics

plz provide supporting link.

2007-07-18 18:36:21 · 1 answers · asked by Anonymous in Other - Science

or does it have an independent existance

2007-07-18 18:30:56 · 10 answers · asked by Anonymous in Mathematics

ok why cant cows be happy in any other state? what the heck

2007-07-18 18:25:05 · 8 answers · asked by Anonymous in Zoology

i am a male, i just turned 14 in june, i believe that my knee caps are bigger for my age. I compared my knee cap with other people from my age range and my knee cap was bigger, in addition, when i was comparing my knee to others, i had something in them that all of them did not have. I have this in both legs: i have a small bump below both of my knees, however, when i press the bump from the left leg, it hurts a bit, and it doesnt hurt when i press the bump from the right leg. In addition, i had knee pains 3 months ago and i feel that my legs are a bit heavy cuz of my knees so here are my qs:

1. what are these bumps?
2. will i continue to grow? did i stop growing?
3. do my knees suggest anything wrong in my body?
4. will i b ok?

2007-07-18 18:24:57 · 7 answers · asked by Anonymous in Medicine

A stopwatch measure the stone's trajectory time from the top of the cliff to the bottom to be 2.5s. What is the height of the cliff? ( Assuming gravitational acceleration is 9.8m/s^2)
A) 25m
B)19m
C)12m

2007-07-18 18:22:23 · 5 answers · asked by Anonymous in Physics

2007-07-18 18:19:07 · 2 answers · asked by gaurav kaushik 1 in Engineering

2007-07-18 18:17:22 · 18 answers · asked by breezy 2 in Chemistry

If you built a large robot spider and on the top had a tiny set of 8 levers, each one controling a leg of the robot, then you glued a real spider to the top so each one of its legs were attached to a lever. Would the spider be clever enough to control the giant spider robot and take over the world? or would it just kind of sit there in protest at being glued to a giant robot?

2007-07-18 18:17:01 · 1 answers · asked by gavinfinlaysmith 1 in Engineering

Hi, please answer to this how many kms is for ozon layer waiting for ur anwers

thanks

2007-07-18 18:15:20 · 3 answers · asked by sanju 1 in Earth Sciences & Geology

Two seconds later it drops a second package. How far apart will the two packages land on the ground?
A)162m
B)177m
C)67.7m
D)283m

2007-07-18 18:13:58 · 5 answers · asked by Josh Muller 1 in Physics

a. high-energy beach, sand
b. mountain stream, angular boulders
c. quiet lagoon, mud
d. deep submarine basin, mud cracks
e. lake bottom, mud

2007-07-18 18:13:30 · 3 answers · asked by noname 3 in Earth Sciences & Geology

A) by a standard metal bar kept in paris, France
B) by a platinum bar kept in the National Bureau of standard
C) as of the distance from equator to pole

2007-07-18 18:06:54 · 3 answers · asked by Josh Muller 1 in Physics

Would it be possible to lower the level of the sea by genetically alerting the size of sea creatures such as fish and plankton? What % of the oceans are made up of creatures and would removing them all (rather drastic I know) lower the level of the sea by much?

2007-07-18 18:04:49 · 4 answers · asked by gavinfinlaysmith 1 in Zoology

What was so controversial about these discoveries?

Why were they so controversial in (1. the scientific community and (2. to the general public?

How was the controversy ultimately resolved?

Finally, how did the scientific community advance/benefit from this controversy?

2007-07-18 18:02:10 · 3 answers · asked by Anonymous in Astronomy & Space

I want to make an ice factory, but i do not know how much the salt level for braine

2007-07-18 17:59:30 · 1 answers · asked by Budjol B 1 in Engineering

2007-07-18 17:57:02 · 19 answers · asked by riana68 1 in Weather

2007-07-18 17:54:36 · 9 answers · asked by Anonymous in Mathematics

If a stationary bike were connected to a generator how much electrical power (Kilowatt-hours) could a person produce riding it?

2007-07-18 17:54:01 · 2 answers · asked by slo_gin007 4 in Engineering

How do you integrate:
t^2 / (1+t^3)
Thanks a lot.

2007-07-18 17:52:03 · 7 answers · asked by jimmycheesemaster 2 in Mathematics

Blood is diluted to 200x its initial vol. and microscopically examined in a layer 0.10mm thick, an average of 30 rbc's are found in each 100 X 100 um square. a)How many red cells are in a cubic mm of blood? b) The rbc's have and average life of 1 month, and the adult blood volume is about 5L. How many rbc's are generated every second in the bone marrow of the adult?

2007-07-18 17:46:54 · 2 answers · asked by Tastytaint 1 in Chemistry

I have some green fluorite that a jeweler wants to purchase, but I don't know what to charge per carat.

I haven't been able to find what to charge per carat and I don't care what people on E-Bay are selling them for (especially since green fluorite is very rare and chances are most people on there don't have true fluorite). I appreciate ANY help!

2007-07-18 17:39:57 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Are there any fantastic jobs out there? Probably in the field of physics?

2007-07-18 17:39:28 · 5 answers · asked by hectexheat 1 in Physics

What would be

2007-07-18 17:39:08 · 4 answers · asked by Anonymous in Earth Sciences & Geology