Science & Mathematics - 2 November 2006

2006-11-02 09:44:38 · 4 answers · asked by manda show 1 in Chemistry

Given that one object is 78 kg and the other is 103 kg; the two objects are in contact and at rest on a horizontal surface; a 733 N force is exerted on the 78 kg object.... I know the formula is F of mass 2 on mass 1 = F - force of friction - ma, but I can't find the force of friction.... can someone show me the light?

2006-11-02 09:43:26 · 3 answers · asked by abc123 1 in Physics

2006-11-02 09:43:22 · 5 answers · asked by blaz4eva 1 in Mathematics

2006-11-02 09:42:40 · 6 answers · asked by Vanesha C 1 in Mathematics

Here are the clues to the amount of cash inside this treasure chest on ebay now, auction started 11/1/06 and ends 11/6/06.
It is currently at 71.00 high bid.
This puzzle has given me quite a headache.....

these are the clues:There will be AT LEAST 30 BILLS in the chest...

There are only TWO DENOMINATIONS of bills...

There will be NO LESS THAN 10 Bills in one of the denominations...

One of the denominations is NOT A $1

NEITHER OF THE DENOMINATIONS is a $10 or $20!

One of the denominations is NOT A $5!

There is NOTHING GREATER than a $100 Bill!

All the bills inside this chest are REAL SPENDABLE US CURRENCY!

BONUS CLUE: There are NO $2 BILLS either!

2006-11-02 09:42:38 · 5 answers · asked by debi_0712 5 in Other - Science

2006-11-02 09:42:07 · 1 answers · asked by dramaqueen9261 1 in Chemistry

When making a batch of the mertial, you must add the proper amount of a .36 M sodium sulfate solution to precipitate all the barium in 5.00 L of a 0.15 M barium nitrate solution. Teh reaction occurs as follows:
Na SO (aq) + Ba(NO ) (aq)----> 2 NANO (aq) +
2 4 3 2 3
BaSO (s)
4
The lower numbers go halfway between the letters.

2006-11-02 09:40:12 · 2 answers · asked by ShanAnn B 1 in Chemistry

2006-11-02 09:39:38 · 3 answers · asked by sarcastro1976 5 in Medicine

using the principle of fluid pressure explain how a medicine dropper works. Another question: what is the effect of increased water depth on a scuba diver?
last question: why does fluid pressure increase as depth increases.

2006-11-02 09:39:27 · 4 answers · asked by Anonymous in Other - Science

2006-11-02 09:38:43 · 1 answers · asked by Anonymous in Zoology

What would be a good science experiment on worms? If yes what kind of materials would I use?

2006-11-02 09:38:14 · 4 answers · asked by Anonymous in Other - Science

Y= 5x+3 , can anyone tell me how to do this problem?

2006-11-02 09:37:40 · 5 answers · asked by fantfoot25 1 in Mathematics

2006-11-02 09:37:14 · 8 answers · asked by Anonymous in Mathematics

and can i also have the word equation for it too.

Iron (III) oxide is a rust in an oxide

2006-11-02 09:35:37 · 6 answers · asked by jenny. 2 in Chemistry

What is the Ring of Fire?
What is in the Ring of Fire?
Does it have anything to do with plate tectonics?

2006-11-02 09:33:35 · 6 answers · asked by Anonymous in Geography

the blades in a blender rotate at a rate of 6500rmp.
when the motor is turned off durinf operation, the blades slow to rest in 3,0s what is the angular acceleration as the blades slow down?

2006-11-02 09:32:41 · 3 answers · asked by nice_ girl 1 in Physics

2006-11-02 09:32:13 · 5 answers · asked by msaquarius 2 in Medicine

really need the answer for a project due on Friday:11/2/06!!

2006-11-02 09:32:03 · 3 answers · asked by LastHorcrux 3 in Zoology

2006-11-02 09:29:16 · 9 answers · asked by Anonymous in Mathematics

Fred (mass 75 kg) is running with the football at a speed of 5.3 m/s when he is met head-on by Brutus (mass 120 kg), who is moving at 4.0 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. How far do they slide? The coefficient of kinetic friction between football uniforms and Astroturf is 0.30.

I have:

P1 = (75)(5.3) = 397.5
P2 = (120)(-4.0) = -480

Total Momentum System: 5.3m - 4.0m = 0.7m


I am lost as to where to go from there. Do I need the sum of forces in the x-direction?


Thanks

2006-11-02 09:28:54 · 3 answers · asked by Anonymous in Physics

2006-11-02 09:24:40 · 1 answers · asked by Sarah 1 in Chemistry

guys thanx 4 helping me, those who were helping and the 1's who are about 2 help.
cause i just can't do 2 things at once,
(watching sister, and doing homework).
lot of work uh?

2006-11-02 09:24:36 · 3 answers · asked by Anonymous in Mathematics

Write the standard form of an equation of the line that passes through the given point and has the given slope.
(-7,2), slope=6
please helppp!!!!

2006-11-02 09:24:15 · 11 answers · asked by kimberly 1 in Mathematics

2006-11-02 09:23:39 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-02 09:21:55 · 13 answers · asked by MIMI 1 in Geography

i want to know the RELATIONSHIP bewteen them and NOT their differencesand do not give me the meaning of each.

2006-11-02 09:21:35 · 8 answers · asked by Ms. Inquisitive 2 in Physics

2006-11-02 09:20:35 · 4 answers · asked by Jace 4 in Engineering

2006-11-02 09:20:14 · 3 answers · asked by Anonymous in Geography

after 4 minutes.
Relative atomic mass H=1,0=16.

2]Using 0.3 mol dm hydrogen peroxide.Give one reason for the answer if it were to be carried out as a experiment.Please show working cause i don't really understand it.

2006-11-02 09:17:22 · 2 answers · asked by Anonymous in Chemistry

for example i need to know the hazards of sodium phenoxide and many others.

2006-11-02 09:15:52 · 2 answers · asked by Anonymous in Chemistry