Science & Mathematics - 31 December 2007

a guy told me that 1 and 1 and 1 equals 1; 1 and 1 and 1 equals 3; and 1 and 1 and 1 equals 7. 1*1*1=1; 1+1+1=3; how does 1 and 1 and 1 equal 7?

2007-12-31 08:46:23 · 5 answers · asked by Anonymous in Mathematics

Say a line is 5cm long and we want to know it's pie what do we do 5cm x 3.141592653589793238462643383279502884197169399375105820974944592 and what? Or is that wrong?

2007-12-31 08:41:21 · 3 answers · asked by Anonymous in Mathematics

2007-12-31 08:39:47 · 1 answers · asked by Robert C 1 in Physics

2007-12-31 08:37:21 · 3 answers · asked by NoName 3 in Chemistry

2007-12-31 08:36:44 · 11 answers · asked by joe e 1 in Chemistry

what i mean by "people' is which cultrue is the majority of the people tall.and which culture is the majority of the people short.

2007-12-31 08:30:11 · 4 answers · asked by Anonymous in Geography

2007-12-31 08:28:47 · 4 answers · asked by schang820 2 in Chemistry

I have about 50 acres of land in Louisiana. A person on a neighboring piece of land about 400 yards over is having a well put in place on his land. I'm almost positive that there is oil and gas on my property as well. Testing has shown oil to be throughout the area. It follows a path once called the Tuscaloosa Trend. What is the best route I can take to have a well set up on my property to allow drilling?

2007-12-31 08:27:50 · 2 answers · asked by infinite_1 1 in Geography

I have about 50 acres of land in Louisiana. A person on a neighboring piece of land about 400 yards over is having a well put in place on his land. I'm almost positive that there is oil and gas on my property as well. Testing has shown oil to be throughout the area. It follows a path once called the Tuscaloosa Trend. What is the best route I can take to have a well set up on my property to allow drilling?

2007-12-31 08:27:05 · 1 answers · asked by infinite_1 1 in Engineering

Which of the following substances has the higest entropy?

a. steam
b. ice water
c. liquid water
d. crushed ice

2007-12-31 08:20:48 · 3 answers · asked by Anonymous in Chemistry

Given the redox reaction:

2+ 3+
2Cr(s) + 3Cu (aq) --> 2Cr (aq) + 3Cu(s)

Which reaction occurs at the cathode in an electrochemical cell?

a- reduction of Cu(s)
2+
b- reduction of Cu (aq)
c- oxidation of Cr(s)
3+
d- oxidation of Cr (aq)

thanks in advance =)

2007-12-31 08:18:14 · 2 answers · asked by person 3 in Chemistry

did any body know i can see saturn jupitor mars with my meade etx 125 telescope with my series 5000 4.7 ultra wide angle before i have meade etx 90 with my series 5000 4.7 ultra wide angle but i never try to look on the sky i just used for land right now i got etx 125 but my series 5000 4.7 ultra wide angle is on the way i just order so if any body know if i can see alot alot of stuff up on the sky let me know thanks all and happy new years

2007-12-31 08:13:53 · 5 answers · asked by bruceleenjackiechanmpls 1 in Astronomy & Space

Like a group of geese is a gaggle; a group of cows is a herd; what is the name given to multiple rats?

2007-12-31 08:12:36 · 29 answers · asked by rock n roll chick 3 in Zoology

Given the equation for the overall reaction in a lead- acid storage battery:
discharge>>
Pb(s) = PbO2 + 2H2SO4(aq) <---------->2PbSO4(s) + 2H2O(l)
<
Which occurs during the charging of the battery?

a- The concentration of H2SO4 increases and the number of moles of H2O(l) decreases.
b- The concentration of H2SO4 increases and the number of moles of Pb(s) decreases.
c- The concentration of H2SO4 decreases and the number of moles of H2O(l) increases.
d- The concentration of H2SI4 decreases and the number of moles of Pb(s) increases.

thanks in advance =)

2007-12-31 08:12:33 · 2 answers · asked by person 3 in Chemistry

We know that some bullets have metallic properties, thus giving it the ability of opposing a negative force from a magnet. So how does this work? (If it all) Thanks!

2007-12-31 08:11:35 · 5 answers · asked by skaterb0b 1 in Physics

18.

What is 7% of 49?
A. 4.34
B. 1.56
C. 2.34
D. 3.43
19.

If a head of lettuce costs the grocery store $0.45 and the store wants a profit of 20% above their cost, how much will the lettuce cost the consumer?
A. $0.50
B. $0.21
C. $0.43
D. $0.54
20.

If a swimming pool has a capacity of 150 people and the pool is at 120% capacity now, how many people are in the pool?
A. 200
B. 168
C. 123
D. 180

2007-12-31 08:10:01 · 7 answers · asked by Anonymous in Mathematics

This question is bugging me to death. Please explain as best as you can, thank you.

A neon sign display has three sets of flashing lights. At 1:00, all the lights are off. Set A remains on for 15 seconds, then off for 1 second. Set B remains on for 20 seconds, then off for 1 second. Set C remains on for 6 seconds then off for 1 second. How many seconds after 1:00 will all 3 sets be off again?

Thank you for your time!

2007-12-31 08:09:45 · 2 answers · asked by Water B 1 in Mathematics

2007-12-31 08:09:14 · 9 answers · asked by wazzupp_dude2009 1 in Mathematics

thoughts and opinions?

2007-12-31 08:06:21 · 5 answers · asked by justask23 5 in Physics

In the reaction:
H2O + H2O <--> H3O+ + OH-

The water is

a- a proton donor, only
b- a proton acceptor, only
c- both a proton donor and a proton acceptor
d- neither a proton donor nor a proton acceptor

thanks in advance =)

2007-12-31 08:06:03 · 3 answers · asked by person 3 in Chemistry

2007-12-31 08:05:00 · 20 answers · asked by KansasGuy 2 in Astronomy & Space

Which species is produced when a hydrogen atom is oxidized?

a- H:H (notice two dots)
b- H:- (notice two dots)
c- H. (notice one dot)
d- H+ (notice no dots)

thanks in advance =)

2007-12-31 08:01:27 · 2 answers · asked by person 3 in Chemistry

I am trying to figure out how to make vertical lines stop. I am using the formual (1x+250(X>5)(X<4) but I cannot figure out how to do this with vertical lines. Can someone help me?

2007-12-31 08:00:41 · 3 answers · asked by Anonymous in Mathematics

2007-12-31 08:00:34 · 5 answers · asked by boyxcrazyxjewelx21 1 in Earth Sciences & Geology

I ask this thinking about the sub-atomic level not the type of universe we exist in.

2007-12-31 07:58:05 · 15 answers · asked by parrs161 1 in Astronomy & Space

The equation below represents the reaction for a lead-acid battery.
discharge>>
Pb + PbO2 + 2H2SO4 <----------> 2PbSO4 + 2H2O
< Which species is oxidized during the discharge of the battery?

a- PbSO4
b- H2SO4
c- PbO2
d- Pb

thanks in advance =)

2007-12-31 07:54:23 · 2 answers · asked by person 3 in Chemistry

I have been pondering this for a couple of years now, and have even asked it to a website or two and a few people. Not once have I ever gotten an answer I felt was properly researched or calculated. I must start by saying that this question is simply to satisfy a bit of a curiosity, no I am not going to try it, so if you need to ask "why does it matter?", just shut up and go the hell away (that will definitely secure a couple "why does it matter" remarks...) Anyhoo, if there were a highway that was perfectly straight and went around the entire earth and connected to itself, and you were driving, say a 4,000 pound vehicle (one could kinda estimate external dimensions from a truck or something for wind resistance and drag), how fast would you have to go before you left the road/shot off into space? Like, slingshotted yourself away from the road due to the curvature of the earth? Is there any way to actually figure this out?

2007-12-31 07:54:21 · 12 answers · asked by Kalishnakov 3 in Physics

2007-12-31 07:54:00 · 5 answers · asked by nonia 1 in Geography

"Kylie picked one-seventh of a basket of apples yesterday. She picked one-half of a basket of apples today. What part of a basket of apples has Kylie picked all together?"

Does this mean that Kylie picked one-seventh yesterday and picked one-half from the remaining six-seventh of the basket?
Mathematically: (1/7) + ((1/2)(6/7)) = 4/7 basket

OR does this mean that Kylie picked one-seventh of a whole basket yesterday and one-half from a DIFFERENT whole basket of apples today?
Mathematically: (1/7) + (1/2) = 9/14 basket

Thank you!

2007-12-31 07:53:23 · 10 answers · asked by =) 1 in Mathematics

Discuss volcanic hazards. Although commonly thought to be associated with most volcanic eruptions (by the general public), lava is rarely responsible for the loss of life. Which hazards would tend to be more deadly? Finally, indicate and discuss those hazards that are a direct result of volcanic activity as well as those hazards that are indirectly linked

2007-12-31 07:51:48 · 1 answers · asked by Mark L 2 in Earth Sciences & Geology