Science & Mathematics - 3 December 2006

if the boat moves directly upstream relative to the water of the river of my previous question which was (a straight river with parallel banks flows at 4km/h. a boat moves directly downstream relative to the water at 11km/h. the velocity of the boat relative to the river bank is...?) at 9km/h, its velocity relative to the river bank is now...?

2006-12-03 12:50:33 · 1 answers · asked by Fatima 1 in Physics

Science Test "need this for study"

2006-12-03 12:50:21 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-03 12:49:55 · 2 answers · asked by paulinatran10 1 in Physics

Time=Distance/Speed

2006-12-03 12:48:44 · 4 answers · asked by raiderguy9876 1 in Mathematics

a diver achieves a horizontal velocity of 3.75 m/s from a diving piano rm located 6.0 m above the water. How far from the edge or the platform will the diver be when she hits the water?

2006-12-03 12:48:08 · 1 answers · asked by Anonymous in Physics

What is the web site that I can buy a star for someone that the stars are not $600???

Thanks :o)

2006-12-03 12:47:25 · 9 answers · asked by moon_fariey 3 in Astronomy & Space

places. Use either natural or common logarithms?

log5(2)

2006-12-03 12:47:12 · 2 answers · asked by jere 1 in Mathematics

2006-12-03 12:47:00 · 3 answers · asked by STORMY K 3 in Geography

a) C2H3O2 -(aq) is a product

b) When balanced the coefficient of KOH(aq) is 3

c) Only ions appear in the net ionic equation

d) H+(aq) does not appear in the net ionic equation

e) K+(aq) appears in the net ionic equation

2006-12-03 12:46:04 · 1 answers · asked by mimi 1 in Chemistry

log5(x^2-1) - log5(x-1)

2006-12-03 12:44:55 · 4 answers · asked by jere 1 in Mathematics

2006-12-03 12:44:10 · 7 answers · asked by STORMY K 3 in Weather

The answer is (-1/2) , I just need to know how to get the answer please! Thank you!

2006-12-03 12:44:08 · 5 answers · asked by tabithasusan 1 in Mathematics

2006-12-03 12:44:05 · 3 answers · asked by nessa 2 in Weather

Okay this is simple thinking on a massive scale, I invented this funny question and nobody really knows, so I'll ask all of you. Considering the sun is made up of more than 90% hydrogen, if you were to add 2 oxygen atoms to the hydrogen atom, would the sun turn into a huge water bubble??? (H20) Hehehe...

2006-12-03 12:43:20 · 4 answers · asked by philosopher 3 in Physics

A rifleman raises his gun and aims it at a tin can target on a shelf in the shooting range. If the bore of the gun is pointed straight at the can, under what conditions will the bullet hit the tin can?

2006-12-03 12:42:28 · 1 answers · asked by Anonymous in Physics

..........π
f(x)=∫(1+cost)dt , f'(x)= ?
..........x

2006-12-03 12:40:39 · 3 answers · asked by wafflehouse 4 in Mathematics

2006-12-03 12:40:03 · 16 answers · asked by paulinatran10 1 in Physics

2006-12-03 12:39:11 · 3 answers · asked by celticevening 1 in Mathematics

Solve the inequality and give solution in interval notation
x/(2x+4)>= 1

2006-12-03 12:38:26 · 5 answers · asked by johnhildeb 3 in Mathematics

is it true u cannot clone from dna alone. so basically we can only take dna from a living thng and clone its dna? it doesnt work if something was dead?

2006-12-03 12:38:24 · 2 answers · asked by Richard C 3 in Biology

it is a MCQ question , im not sure which one . From question ,

Y(aq) added with Fe(2+) aq will give us yellow solution . X could be

A) . MgO B).Al2O3 C) SiO2 D) Cl2O7

i know it cant be MgO since it is basic oxide .And I believe the yellow solution must have something to do with oxidation of F2(2+) to Fe(3+) . I know Al(3+) cannot oxidise Fe(2+) . So is it C or D ?

2006-12-03 12:38:19 · 2 answers · asked by random people 2 in Chemistry

log12 + 1/2log7 - log2

2006-12-03 12:37:54 · 4 answers · asked by im_all_about_spades2003 1 in Mathematics

2006-12-03 12:37:36 · 3 answers · asked by celticevening 1 in Mathematics

A "perfect power" is a number that can be written as a positive integer raised to an integer power greater then one. For example, 125 is a perfect power because it is equal to 5 cubed. The list 2, 3, 5, 6, 7, 10, 11, 12, 13, 14, 15, 17, ... contains every positive integer less than 1000 that is not a perfect power. How many integers are in the list?

2006-12-03 12:37:22 · 7 answers · asked by Anonymous in Mathematics

log2(xy)^10

2006-12-03 12:35:58 · 3 answers · asked by im_all_about_spades2003 1 in Mathematics

Multiply and simplify. Remember to include any changes in the domain.

2006-12-03 12:34:58 · 4 answers · asked by Nischal P 1 in Mathematics

2006-12-03 12:34:58 · 11 answers · asked by Anonymous in Mathematics

log(sqrt 0.1))

2006-12-03 12:34:37 · 1 answers · asked by im_all_about_spades2003 1 in Mathematics

log2(112)-log2(7)

2006-12-03 12:33:32 · 3 answers · asked by im_all_about_spades2003 1 in Mathematics

I just had a semi large fire on my deck, and I wasn't sure if I should use water at first, since the fire was on an electrical output, but not from electricity originally. I finally did, and it wasn't. But in the future, I was wondering if an electrical fire LOOKS or ACTS differently than a regular fire (as in lighting a match on paper).

2006-12-03 12:31:39 · 4 answers · asked by Mo S 1 in Engineering