Science & Mathematics - 17 August 2007

Use your calculator to evaluate the following expression: if x=-4.28, and y = -4.68, round your answer to the nearest 10th. x-5y

2007-08-17 12:36:30 · 3 answers · asked by Brenda L 1 in Mathematics

SiO2 is a high melting point solid?

2007-08-17 12:32:49 · 1 answers · asked by }{3@T 2 in Chemistry

2007-08-17 12:32:46 · 5 answers · asked by Brenda L 1 in Mathematics

If we turned all matter into energy through atomic breakdown, at what point would it become matter and how. How does something that is not physical become matter which has a substance?

2007-08-17 12:30:15 · 4 answers · asked by Ryan G 2 in Physics

I have no idea what this bug is but my puppy has been bitten more then a couple of times by these vicious 1/4" black, hard-shelled, oval/round shaped body, 6-legged bug along the grass in NJ. Hard-shelled and flat like an unfed tick but all black. Also, the body seemed more oval like - not interrupted with a beady little tick head and the legs were evenly distributed around the body -not 4 in front 2 in back. we really had to pry the creature off - it left little blood marks were it sat on the fur/skin.... does anyone have a clue as to what they are???

2007-08-17 12:22:42 · 1 answers · asked by hidden_within_a_nightmare 3 in Other - Science

Like if carmen electra was 1/10000000 hamster, would she be an animal or a person? She'd look normal, but just'd have that bit of hamster DNA. Would you bring her home to mama? Make a family with her? Make woopie? Knowing that her great great x 10 ? once found joy running in a wheel, would this be okay with you?

2007-08-17 12:20:55 · 7 answers · asked by Anonymous in Biology

i have thought about becoming an engineer but i dont know what type (maybe mechanical?) and i would like to know what a typical day would be like. like what types of things they would work on etc.

2007-08-17 12:18:40 · 1 answers · asked by Anonymous in Engineering

is a elephant shark real?

2007-08-17 12:18:35 · 3 answers · asked by Mikki Mixx.[morgan.] 5 in Zoology

I'm interested in this career but I'm curious as to how much they make?

2007-08-17 12:18:00 · 5 answers · asked by Anonymous in Engineering

what are the positive and negatives when using this in a biology class?

2007-08-17 12:15:37 · 2 answers · asked by Anonymous in Biology

t/s 0 10 20 30 40 50 60 70 80
a/ms^-2 30 31.63 33.44 35.47 37.75 40.33 43.29 46.69 50.67
Calculate the velocity and height of the rocket at time t=80 sec

2007-08-17 12:15:01 · 4 answers · asked by da old phizo 1 in Physics

One task took 7 minutes (min), a second task took 12 min, and
a third task took 21 min. How long did the three tasks take, as a fraction of an
hour?

2007-08-17 12:14:51 · 7 answers · asked by LeLe 1 in Mathematics

2. The officejet printer can copy Jane's dissertation in 18mins. The laserjet printer can copy the same document in 14mins. If the two machines work together how long would they take to copy the dissertation?

3. Solve. Simplify the answer
x/x+6 - 6/x-6 = x^2+36/x^2-36

4. Solve.
a) z-3/z+9=5/7
b) z+5/z = -6

5. Divide and simplify the answer
-22+11x/3 / 49x-98/9

2007-08-17 12:07:02 · 2 answers · asked by Anonymous in Mathematics

Is it possible to differentiate their DNA species type if all their blood is mixed together? (e.g. mix human's, chimp's, bird's, tiger's etc blood together. If yes, how?

2007-08-17 11:59:45 · 2 answers · asked by Fact_is_fact 2 in Other - Science

]am way out of school.]
a train weighs 120,000 pounds
it can travel, using diesel fuel, 16 kilometers
in one hour

if it switches power, it can travel 4 kilometers
in one hour using elect generators

if it again switches power, to wind power,
it can travel 2 kilometers per hour.

if the engineer wishes to incorporate
all 3 means of propulsion, what speed or
distance will he be able to reach?

offer answer and foruma.

2007-08-17 11:56:57 · 8 answers · asked by kemperk 7 in Engineering

you have $15 and buy r raffles tickets for $.50 each. How much money do you have left?

how do you write that as an expression?

2007-08-17 11:56:08 · 4 answers · asked by sharizzle 1 in Mathematics

2007-08-17 11:55:55 · 2 answers · asked by mansiho 1 in Zoology

2007-08-17 11:54:32 · 2 answers · asked by Jing-Yi Z 2 in Engineering

Hi,
What is stronger, 20mg of methadone or a 20mg Kadian capsule? (Kadian is supposed to be some kind of Morphine time release capsule)
If someone is used to taking 100mg of Methadone per day, then will a 20mg Kadian capsule, even crushed up, have any noticable effect on that person that is used to taking 100mg of methadone every day?
Would the 20mg Kadian have a stronger effect than 20 mg of Methadone if I was to crush up the Kadian medicine so it will absorb all at once? Or is methadone so much stronger that not even crushing the Kadian will make it the same as methadone?
Thank you

2007-08-17 11:50:24 · 3 answers · asked by perryinjax 3 in Medicine

How do you solve that problem? I'm reviewing for school. Can you please show it step by step? Thanks!

2007-08-17 11:48:51 · 5 answers · asked by ♥TheBeatlesBiggestFan♥ 5 in Mathematics

2007-08-17 11:45:34 · 5 answers · asked by Anonymous in Weather

There was a huge hornets nest in a tree near our barn then suddenly some thing tore it to shreds and now there are no hornets in the vicinity ??

2007-08-17 11:40:45 · 2 answers · asked by Anonymous in Zoology

Last night (or this morning) at 4am, I saw a star in the sky that was a little too bright. I live in Toronto (so you know with all the city lights, it was uber-bright), and I was facing east. Was that a planet I saw?

2007-08-17 11:37:47 · 12 answers · asked by Anonymous in Astronomy & Space

2007-08-17 11:36:17 · 5 answers · asked by Alexander 6 in Mathematics

Have you ever achieved a dream or goal of any kind(wether economic, at any field) you had thought it was "impossible"? What do you suggest me in order to achieve a dream or goal that it is apparently impossible?

2007-08-17 11:33:48 · 12 answers · asked by noname 1 in Paranormal Phenomena

just curois beacause im driving down that highway and dont want to have my memo erased!

PS: is hacking wrong?

2007-08-17 11:33:13 · 2 answers · asked by Anonymous in Astronomy & Space

my freind that worked for a mine company the one that these terrible events have taken place told me that it wasnt seismic activity in the mine but the way that the moners got to the coal it self. and the owner will not come out and say that it wasnt a earth quake but the mountain slowly coming down over these poor souls. all of this could have been avoided if they mined the coal differently

2007-08-17 11:29:29 · 11 answers · asked by Joe Willson 3 in Earth Sciences & Geology

It is evident he is every where and in everything. When we look at the stars we can see the evidence of God. Some say that a big bang happened and that is how all of the stars are out there that they are particals of matter and gasses. I say this to them... How is it that even with us moving around the sun in the universe how do we still see the same stars every night? It is because God made them to go the same speed as OUR planet. thee other planets dont travel as ours but ours travels as the stars do... God made them that way to help us understand that there is order and direction in the universe and that is by Him. Tell me what you think... You cant say we dont see the same stars every night... Big Dipper? Little Dipper? tell me your thoughts.

2007-08-17 11:27:57 · 23 answers · asked by gimojore 2 in Astronomy & Space

2007-08-17 11:26:44 · 2 answers · asked by homebaker63 1 in Zoology

2007-08-17 11:21:31 · 4 answers · asked by Anonymous in Engineering