Science & Mathematics - 7 December 2006

My Meteorology for Scientists & Engineers book says its the solar constant * sin phi. The TA in my one class says its the solar constant * cos phi. Any ideas???

2006-12-07 12:53:28 · 1 answers · asked by JoeSchmo5819 4 in Astronomy & Space

0 ⤊

5x^2+23x-10=0?

use quadratic formula to solve quation. Correct answer gets 10 points :)

2006-12-07 12:53:06 · 2 answers · asked by SICK MY DUCK! 1 in Mathematics

1 ⤊

If a Racoon had Rabies, would it pose a threat to Gnomes?

Normally, a non-rabid Racoon will not bite Gnomes. In general, they are friendly with us. If a Racoon had Rabies, however, would it possibly become a threat?
(http://www.geocities.com/gnome_reserve)

2006-12-07 12:53:02 · 6 answers · asked by Gnome R 2 in Zoology

0 ⤊

A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of ki

A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.22 and the push imparts an initial speed of 3.7 m/s?

2006-12-07 12:52:46 · 2 answers · asked by Woodie W 1 in Physics

0 ⤊

can anybody help me please?

Solve the equation. Give exact solutions. then approximate the solution to the nearest hundredth, if necessary.

2x^2 = 20

2006-12-07 12:51:39 · 3 answers · asked by SICK MY DUCK! 1 in Mathematics

0 ⤊

Help me with this Science question?

If you had 100g of water (H2O)...
how many grams of Oxygen would you have?
how many grams of Hydrogen would you have?

2006-12-07 12:50:45 · 5 answers · asked by Anonymous in Chemistry

0 ⤊

Ammonia burns in the presence of oxygen gas and a copper catalyst to form nitrogen gas and water vapor.

4NH3(g) + 3O2(g) -------> 2N2(g) + 6H2O(g) dH=-1267kJ

What is the enthalpy change(in terms of kJ) to burn 35.8g of ammonia?

(answer should be reported to 3 sig figs )
Format: +/-XXX

** BEST ANSWER TO THE ONE WHO GETS IT RIGHT **

2006-12-07 12:50:22 · 0 answers · asked by ** i Am hiS giRL ** 5 in Chemistry

0 ⤊

Significant Numbers?

"Zeros at the end of a number are significant only if they are indicated to be so through the use of scientific notation."

I don't understand this concept. Can someone help me please?

2006-12-07 12:49:49 · 3 answers · asked by Anonymous in Physics

0 ⤊

X/Y=1.702702703. What are the possible values of X and Y between 1 and 100 including decimals ?

Excluding numbers 63 and 37

2006-12-07 12:49:39 · 2 answers · asked by Anonymous in Mathematics

2 ⤊

How can I use a TI-83 calculator to solve a system of 3 equations in 3 unknowns?

I know how to input it as a matrix but after that i am stumped!

2006-12-07 12:48:27 · 5 answers · asked by kristi 2 in Mathematics

1 ⤊

Do Grizzly Bears have enemies?

2006-12-07 12:48:05 · 14 answers · asked by Anonymous in Zoology

1 ⤊

What is an exaple of a normal fault earthquake?

2006-12-07 12:47:22 · 4 answers · asked by chic_chick1994 2 in Earth Sciences & Geology

1 ⤊

DNA or RNA purification?

Which one is similar to protein purification DNA or RNA?

2006-12-07 12:47:18 · 4 answers · asked by Binna S 1 in Medicine

1 ⤊

7y^4+7y^5+7y^2?

factor the polynomial completely

2006-12-07 12:45:57 · 9 answers · asked by Monica T 1 in Mathematics

2 ⤊

Why does Potassium react more violently than Litium reacts to water? (Read further)?

Lithium and potassium are both elements in Group 1 (IA) and have the same electron configuration in the outer energy level,Both elements react vigorously with water but, Potassium reacts more violently than Lithium.

Why does Potassium react more violently than Litium reacts?

2006-12-07 12:42:42 · 2 answers · asked by cheez-it 1 in Chemistry

0 ⤊

need to know the shape of the C2H5OH molecule?

2006-12-07 12:41:41 · 1 answers · asked by madmath09 1 in Chemistry

0 ⤊

What are some examples of a replacement reaction?

I need some examples for this project, and I cant think of anything. They need to be reactions that happen everyday. Thanks if you can help!

2006-12-07 12:40:42 · 3 answers · asked by Gabrielle*With Love 3 in Chemistry

0 ⤊

a. Calculate the spring stiffness constant of the bungee cord?

also b. Calculate the unstretched length of the bungee cord.
A bungee jumper with mass 64.0 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 34.5 s. He finally comes to rest 24.0 m below the level of the bridge.

2006-12-07 12:40:34 · 2 answers · asked by Layla 1 in Engineering

0 ⤊

Math Question Help?

Okay I have no Idea what to do my book is really no help at all.

Draw two marbles without replacement from a bag containing two red marbles, one black marble, and one yellow marble. Fully describe the sample space.

Do they want a tree diagram? Or can I just write out all of the possible outcomes? I don't kow what they are asking for...

2006-12-07 12:39:28 · 6 answers · asked by gg 4 in Mathematics

0 ⤊

is the shape of C2H4 molecule planar?

2006-12-07 12:39:01 · 2 answers · asked by madmath09 1 in Chemistry

0 ⤊

Why were the noble gases so difficult to detect and isolate. (More details on background)?

The noble gases were among the last naturally occuring elements to be discovered, even though, some of them, particularly argon and neon, occur in moderate abundance on Earth.

Why were the noble gases so difficult to detect and isolate.

2006-12-07 12:38:33 · 1 answers · asked by cheez-it 1 in Chemistry