Science & Mathematics - 3 August 2007

1) At a certain time in a deer park there are 45 heads and 146 legs. Counting boththe deer and human visitors how many deer and human visitors were there?

2)Grandpa's age in yrs is equal to his dog's age in months. If the difference in the ages is 55yrs' find the age of each?

3)A chemist has one solution in which there is 50%acid and a 2nd one with 25%acid. How much of each should be there to make a 40%acid solution?

4) On a school picnic a group of students agreed to pay equall for the use of a pull boat and pay Rs10 each. If there are 3 more students in the group each would have to pay Rs 2 less. How many students were there?

2007-08-03 03:57:20 · 4 answers · asked by taaha 3 in Mathematics

2007-08-03 03:53:28 · 22 answers · asked by .♥Blessed.and.Highly.favored♥. 2 in Mathematics

I know it is not accurate. But why, why, oh I cannot sleep at nights, oh my oh my---why?

2007-08-03 03:46:32 · 3 answers · asked by ? 2 in Weather

These clusters of same polarity attract clusters of opposite polarity and repel clusters of same polarity . It is known that charges of same polarity repel while of opposite polarity attract. But how these clusters of same polarity them selves hold together ?

2007-08-03 03:41:58 · 2 answers · asked by Natasha 1 in Physics

How does a formula 1 car's front spoiler create downforce? Does it use newtons third law or the bernoulli principle? plz explain how it creates downforce. How does a car body create downforce? Does it use newtons third law or the bernoulli principle? Plz explain how it creates downforce. How does a rear spoiler create downforce? Does it use newtons third law or the bernoulli principle? Plz explain how it creates downforce.

2007-08-03 03:39:54 · 3 answers · asked by 1999 Nissan Skyline GTR Vspec 5 in Engineering

How do docs determine death? What is their procedure?
Can someone help - I'm writing something for an essay so I need this help. And I can't visit my GP - coz they're fully booked

2007-08-03 03:37:12 · 10 answers · asked by Anonymous in Medicine

example 16 divided by 1 1/5

2007-08-03 03:36:31 · 18 answers · asked by Pops 1 in Mathematics

2007-08-03 03:35:38 · 11 answers · asked by Cutthroat Lars 2 in Astronomy & Space

2007-08-03 03:34:16 · 18 answers · asked by Anonymous in Astronomy & Space

2007-08-03 03:23:35 · 7 answers · asked by Anonymous in Astronomy & Space

2007-08-03 03:23:14 · 14 answers · asked by Robin 1 in Physics

2007-08-03 03:09:37 · 7 answers · asked by Anonymous in Botany

2007-08-03 02:49:27 · 17 answers · asked by Anonymous in Astronomy & Space

friends i want help in constructing a working model of a water purifier which can purify grey and sea water to potable water. size may be portable. and cost efficient for a college science exhibition

2007-08-03 02:44:08 · 5 answers · asked by adi 1 in Earth Sciences & Geology

1) If you divide the number by 6, the reminder is 5
2) If you divide the number by 5, the remainder is 4
3) If you divide the number by 4, the remainder is 3
4) If you divide the number by 3, the remainder is 2
5) If you divide the number by 2, the remainder is 1

Find the lowest number (below 500) which meets the above criteria. Please explain how to get that number in least possible logical steps.

2007-08-03 02:43:15 · 4 answers · asked by yogesh u 3 in Mathematics

2007-08-03 02:42:02 · 3 answers · asked by busty f 1 in Earth Sciences & Geology

2007-08-03 02:40:07 · 5 answers · asked by Ernie G 7 1 in Geography

Please Answer Thank YOU!!!!!!!!!!!!!!

2007-08-03 02:37:07 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-03 02:35:11 · 1 answers · asked by Cute G 1 in Chemistry

A friend lives in an upstairs duplex. His stairway is outside and Bats often fly by his door as it's on the upper level right under the roof. What can he do to keep them away? Someone mentioned moth balls...Does that work for bats? Serious answers please and thank you.

2007-08-03 02:33:48 · 4 answers · asked by Anonymous in Zoology

About the Moon landing conspiracy theory.
How come 40 years ago a spaceship went to the moon, landed dead and then took off again, whereby today America's only hope of space travel is Baykonur and the Russian technology?
Doesn't it sound to you realisticthat 40 years ago it would have been practically impossible to achieve such a feat, espeacially the part when Apollo 11 takes off from Moon...

2007-08-03 02:03:44 · 16 answers · asked by Anonymous in Astronomy & Space

Exposing the slice of bread to the heat for 2 mins approx.......

2007-08-03 02:02:02 · 8 answers · asked by Anonymous in Astronomy & Space

Kim and Deb ride bicycles in opposite directions. Deb's speed is three miles per hour faster than Kim. If they are 16.5 miles apart in 1.5 hours, what is the speed of Kim?

Can anyone explain how to do this in detail so I understand how to do it my self in the future.

2007-08-03 01:54:47 · 6 answers · asked by Phych 1 in Mathematics

All recicle plastics are printed whith an arrows circle whith a number in center ¿ how i do know plastics name, reading this number?

2007-08-03 01:45:43 · 2 answers · asked by dreamtig 1 in Engineering

Is It the size or depth or what?

2007-08-03 01:42:13 · 11 answers · asked by Anonymous in Geography

2007-08-03 01:40:16 · 8 answers · asked by joyce the footballer @hotmail.uk 1 in Biology

If Aggregated diamond nanorods was to be hit really extremely hard by a titanium jackhammer will it break like a diamond would?

Would Aggregated diamond nanorods break/crack (as big and as thick as a arm bone) if shot by a gun that is strong enough to pierce through tank

2007-08-03 01:33:30 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-03 01:31:04 · 2 answers · asked by polarbear 1 in Mathematics

i understand the negative feedback loop, but the positive one is making no sense to me at all.
i can understand the concept but i can't see how it is even remotely relevant to regulating changes in the body.
basically i understand it as something similiar to a domino effect, where one thing begins it triggers multiple reactins from the same thing.
they've given example like child birth, blood clotting, protein digestion.
i don't get it! if there's more of the same reaction then isn't that a bad thing?
can anyone make it clearer to me please?

2007-08-03 01:28:09 · 6 answers · asked by Anonymous in Biology

2007-08-03 01:27:02 · 5 answers · asked by JP74 2 in Astronomy & Space