Science & Mathematics - 13 December 2007

The accleration of gravity is 9.8m/s^2. Calculate the depth in the ocean at which the pressure is three times atmospheric pressure. Answer in meters

The density of sea water is 1025 kg/m^3
Atmospheric pressure is about 101,325 Pa



When a 55N stone is submerged in water, the spring scale (which measures apparent weight) reads 45N when attached to the rock. What is the density of the stone. Answer in units of kg/m^3

2007-12-13 12:45:03 · 3 answers · asked by akanthasy 1 in Physics

2007-12-13 12:44:48 · 1 answers · asked by *Roar* 2 in Mathematics

2007-12-13 12:39:06 · 7 answers · asked by Sajjad M 1 in Engineering

A piggy bank contains five "loonies" and eight "toonies." It is shaken until two coins drop out.

a) What is the probability that two loonies will fall out?

b) What is the probability that two toonies will fall out?

c) What is the probability that one of each type of coin will fall out?

2007-12-13 12:36:20 · 7 answers · asked by (: Muffin Man :) 2 in Mathematics

WHAT time is the best to see it in NJ

2007-12-13 12:33:29 · 3 answers · asked by wiggly3 1 in Astronomy & Space

a volcano that erupts constantly.cant find it on the web anywhere.nicknamed the firey volcano''

2007-12-13 12:32:03 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-13 12:30:25 · 2 answers · asked by Madeline H 2 in Mathematics

I had asked a question earlier about why ice sheets form on creeks and streams trying to ask I would call an ancient question that my stepfather has about why the water level on the stream that runs through his farm is 8to12inches below the actuall sheet of ice formed usually on the edge of the stream extending outward. I guess the real question I have is does the moon have anything to do with this,and is there such things as tides in this area (Wisconsin)?This has been a thing that he has wanted answerd ever since I can remember,and he thinks no one cares when he puts the question out!! It's just that I don't have an answer thats all. Would mean a great deal to me to find out!!! Thanks dreamweaver...

2007-12-13 12:27:45 · 3 answers · asked by dreamweaver 4 in Physics

Nine people try out for nine positions on a baseball team. The positions are filled by selecting players at random. Assume that all players are equally qualified for any position.

a) In how many ways can the positions be filled?

b) What is the probability that Duffy will be the pitcher?

c) What is the probability that David, George, or Duffy will play first base?

d) What is the probability that David, George, or Duffy will play first base and Eleanor or Georgina will be pitcher?

2007-12-13 12:27:05 · 8 answers · asked by (: Muffin Man :) 2 in Mathematics

CONT.............. posibilities is the correct one?

2007-12-13 12:24:57 · 5 answers · asked by Anonymous in Astronomy & Space

Which two would you say were most similar-rats and squirrels or rats and fish ? explain your answer, using as many specific traits as you can.

2007-12-13 12:22:23 · 4 answers · asked by erikjjjacob 1 in Zoology

Let f(x)=12-x^2 for x is greater than or equal to 0 and f(x) is greater than or equal to 0.

a. The line tangent to the graph of f at the point (k, f(k) intercepts the x-axis at x=4. What is the value of k?

b. An isosceles triangle whose base is the interval from (0,0) to (c, 0) has its vertex on the graph f. For what value of c does the triangle have maximum area? Justify your answer...

simple explanations would be very very helpful! ;)

2007-12-13 12:20:44 · 2 answers · asked by hello. 1 in Mathematics

Have you ever started a fire with the following methods?
Plough method
Bow and Drill method
Magnifying glass method
If you have, how long did it take 4 u to start a fire with them (estimate) whoever answers first wins(with good answer)

2007-12-13 12:18:41 · 6 answers · asked by Toni 2 in Earth Sciences & Geology

2007-12-13 12:16:06 · 2 answers · asked by ? 3 in Weather

When I was going to UNO, I heard that were colonies of inbreed blue people.

2007-12-13 12:15:49 · 25 answers · asked by Raven 1 in Biology

2007-12-13 12:15:32 · 4 answers · asked by Tay P 1 in Mathematics

What makes up atmosphere on the molecular level? What it its energy source?

2007-12-13 12:14:36 · 6 answers · asked by Jeffery 2 in Earth Sciences & Geology

What makes up biosphere on the molecular level?

2007-12-13 12:13:38 · 1 answers · asked by Jeffery 2 in Earth Sciences & Geology

What makes up geosphere on the molecular level?

2007-12-13 12:12:48 · 2 answers · asked by Jeffery 2 in Earth Sciences & Geology

What makes up saltwater on the molecular level?

2007-12-13 12:11:24 · 1 answers · asked by Jeffery 2 in Earth Sciences & Geology

2007-12-13 12:06:28 · 4 answers · asked by hani d 1 in Zoology

2007-12-13 12:03:16 · 12 answers · asked by Raven 1 in Other - Alternative

i neeed this answer!

2007-12-13 12:02:37 · 10 answers · asked by kristen 2 in Botany

It's a type of a weather condition

2007-12-13 12:00:17 · 5 answers · asked by malibudream06 3 in Weather

I'm doing an essay and need some help, PLEASE and THANKS! so my question is, describe the factors that have made the Rhine River the "Industrial Heartland" of Europe?

2007-12-13 11:57:29 · 4 answers · asked by Anonymous in Geography

2007-12-13 11:56:49 · 3 answers · asked by ♥Ballin Babe ♥ 2 in Geography

For my science project hypothesis... Is their any proof that one sex's eye colour is more likely to appear on their children?

2007-12-13 11:50:51 · 4 answers · asked by Anonymous in Biology

ok so heres what I'm thinking grounded copper wire, lead, faraway mes, doubt aluminum foil can someone give me how much these radio waves can absorb as well as maybe adding new ones to the list?

2007-12-13 11:50:31 · 1 answers · asked by Anonymous in Other - Science

2007-12-13 11:39:54 · 9 answers · asked by Kim D 1 in Mathematics

This is the kind of question my teacher is asking but I do not understand how to do it. I thought that maybe if I heard it phrased differently it might help. I'm looking for a solution to this system of equations.

2007-12-13 11:39:46 · 10 answers · asked by Anonymous in Mathematics