Science & Mathematics - 10 February 2007

2007-02-10 02:26:54 · 6 answers · asked by cak 1 in Earth Sciences & Geology

2007-02-10 02:25:43 · 2 answers · asked by sammy m 1 in Engineering

2007-02-10 02:24:23 · 13 answers · asked by bloom d 1 in Astronomy & Space

I know that when we sweat the water molecules evaporate by absorbing energy and cool us down but does that means the molecules become cold after the energy absorbtion?Wont they get hot due to energy absorbtion?

2007-02-10 02:21:09 · 10 answers · asked by jazmeen 2 in Biology

2007-02-10 02:21:07 · 5 answers · asked by katrine 1 in Zoology

2007-02-10 02:18:01 · 8 answers · asked by StarryKnight 1 in Engineering

Suppose you have a pipe with circumference 8 cm and length 20 cm and that 8 turns of a wire are wrapped around the pipe. What is the lenght of the wire? Thanks in advance...

2007-02-10 02:17:38 · 13 answers · asked by unpredictedmystery 3 in Mathematics

2007-02-10 02:17:29 · 3 answers · asked by secret 1 in Physics

1. An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located?

A. 5.0 millimeters
B. 7.5 millimeters
C. 15 millimeters
D. 30 millimeters

2007-02-10 02:13:59 · 10 answers · asked by tami t 1 in Chemistry

1. An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located?

A. 5.0 millimeters
B. 7.5 millimeters
C. 15 millimeters
D. 30 millimeters

2007-02-10 02:11:51 · 11 answers · asked by tami c 1 in Physics

1. An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located?

A. 5.0 millimeters
B. 7.5 millimeters
C. 15 millimeters
D. 30 millimeters

2007-02-10 02:10:54 · 2 answers · asked by tami c 1 in Physics

The production capacity for acrylonitrile (C3H3N) in the United States is over 2 million pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from gaseous propylene, ammonia, and oxygen;




2C3H6(g)+2NH3(g)+3O2(g) --> 2C3H3N(g)+6H2O(g

A)
What mass of acrylonitrile can be produced from a mixture of 0.88kg of propylene, 1.55kg of ammonia, and 2.10kg of oxygen?

B)
What mass of water is produced?

C)
What mass of propylene is left over?

D)
What mass of ammonia is left over?

E)
What mass of oxygen is left over?

2007-02-10 02:09:28 · 1 answers · asked by bollocks 2 in Chemistry

What would a balanced equation for the reaction between acetic anhydride and water look like?

2007-02-10 02:04:38 · 1 answers · asked by mrkittypong 5 in Chemistry

right triangle MNO with verticies M (-4,0), N (0,5), and O (10, -3).

Please explain to me how I could solve for this...

Thanks in advance!

2007-02-10 02:03:34 · 2 answers · asked by Lina 4 in Mathematics

2007-02-10 01:59:51 · 9 answers · asked by Sujai S 1 in Chemistry

2007-02-10 01:59:31 · 1 answers · asked by tote 1 in Astronomy & Space

2007-02-10 01:57:57 · 14 answers · asked by Kenneth M 1 in Engineering

I want to design a 100 ton ratchet jack and the table of the jack must have traverse mechanism which can be run by a electric motor for easy operations. please give me the clear drawings and also supporting sites.

2007-02-10 01:57:39 · 1 answers · asked by VUTTU 2 in Engineering

admiral byrd

2007-02-10 01:57:32 · 1 answers · asked by prkorea4 1 in Earth Sciences & Geology

2007-02-10 01:56:44 · 3 answers · asked by jngaurang 1 in Chemistry

2007-02-10 01:56:27 · 4 answers · asked by Bev B 2 in Astronomy & Space

2007-02-10 01:55:32 · 3 answers · asked by >() 1 in Biology

A river runs East to west. A tree stands on the edge of one bank and from a point c, the opposite bank and due south of the tree, the angle of elevation of the top of the tree is 28 deg . From point D, 65 m due East of C the angle of elevation of the top of the tree is 20deg. calculate ( A ) The height of the tree, ( B) the width of the river

2007-02-10 01:55:13 · 5 answers · asked by 47 2 in Mathematics

2007-02-10 01:54:29 · 1 answers · asked by raghav m 1 in Mathematics

2007-02-10 01:48:27 · 1 answers · asked by raghav m 1 in Mathematics

i tricked every person at my school its fun tee hee

2007-02-10 01:47:33 · 12 answers · asked by PIKACHU P 2 in Biology

a load of mass 50kg stands on the horizontal floor of a goods lift which is accelerating vertically downwards at 2 m/s2.calculate the magnitude of the constant force exerted on the load by the floor.then a man who is in the lift ,ehich is still accelerating downwards at 2m/s2 ,pushes the load horizontally and the load is on the point of slipping ,given that the coefficient of friction between the load and the floor is 0.3, calculate the magnitude of the force exerted on the load by the man.

2007-02-10 01:46:05 · 4 answers · asked by Anonymous in Physics

I'm trying to determine a good way to determine what compounds are ionic or covalent. I have for example, C3H8. This is 3 carbons and 8 Hydrogens. Their valence shells have 1 and 4. This is not even close to being an octet. Any help...?

2007-02-10 01:44:44 · 3 answers · asked by Toothie 2 in Chemistry

2007-02-10 01:42:46 · 12 answers · asked by Anonymous in Medicine

S=n ÷2(a+l)
To make n the subject
To make a the subject
To make l the subject

Transpose the formula v²= u² + 2as
To make v the subject
To make u the subject
To make s the subject


Write what you think will be the next two terms in the pattern each time.
Help me to insert the last four numbers
1,3,7,15,.. ,……, ……,…….,
4,9,16,25, ,.. ,……, ……,…….,
7, 8, 10, 14, 22, ,.. ,……, ……,…….,
1, -8, -17, -26, ,.. ,……, ……,…….,


Help me to insert the last only last number
10, 14,18,22,26 and the next one is?
3,4, 6, 10, 18, and the next one is?


Write down the rule fot the following arithmetic sequences
a. {1, 6, 11,…. }
b. {11, 2, -7, ….}
c. {1,2,4,8….}

2007-02-10 01:40:52 · 4 answers · asked by need_need 1 in Mathematics