Science & Mathematics - 12 January 2007

2007-01-12 09:49:13 · 7 answers · asked by rdeanstylist 1 in Chemistry

The 3 dimensions (x, y, z) allow for moving to any point within those coordinates. However, time has a restriction that it can only go forward. Unless someone determines that you can go to any point along the time dimension. How can time be considered a dimension?

2007-01-12 09:47:49 · 9 answers · asked by timespiral 4 in Physics

A = 1/2h(B + b) solve for b

2007-01-12 09:46:07 · 12 answers · asked by Anonymous in Mathematics

Find the coordinates of the midpoint of a line segment with endpoints A(-5, 2) and B(3, -12).
A (-2,4)
B (1,-10)
C (2,3)
D (-1,-5)

2007-01-12 09:44:26 · 12 answers · asked by Anonymous in Mathematics

How was it determined that an hour, minute and second was even the length of time that it is?

2007-01-12 09:44:25 · 7 answers · asked by Dellajoy 6 in Mathematics

it arrived in 1 gallon metal containers...

would it be be better to transfer it all to the huge water container that i have delivered?

2007-01-12 09:42:49 · 4 answers · asked by carolthec4 1 in Chemistry

Seems to me it would have been easier to draw straight lines instead of having the borders of most places be all squiggly.

2007-01-12 09:41:53 · 3 answers · asked by Dellajoy 6 in Geography

or the coastal side of the storm with heavy downpours of rain and
30-50 mph winds and high surf and rip currents.

2007-01-12 09:38:59 · 10 answers · asked by snowboy 3 in Weather

Thanks a lot

2007-01-12 09:35:12 · 9 answers · asked by brennen 1 in Mathematics

D=C-s/n solve for s depreciation.

2007-01-12 09:34:44 · 5 answers · asked by Anonymous in Mathematics

Doesn't the moon also rotate on its own axis like Earth does? If that's the case, surely we can see all the "sides" of the moon at one time or another.

2007-01-12 09:34:03 · 15 answers · asked by whitequeen2000 2 in Astronomy & Space

by the way, it's african.

2007-01-12 09:33:48 · 6 answers · asked by Jake B 2 in Physics

Just out of curiosity, is there any way to figure out logs of numbers without the use of a calculator, say log[base10](758585) or something simpler? I mean, before calculators, how did mathematicians solve logarithms (other than just having lists - and how did they make these lists)? Also, how do calculators do it (this is not supposed to be a stupid question); I'm guessing there is some sort of matrix or something; can't we apply that on our own -- only it would take us MUCH, MUCH longer?

Thanks,
AC

2007-01-12 09:32:53 · 3 answers · asked by Losomasnop 1 in Mathematics

2007-01-12 09:32:41 · 7 answers · asked by Anonymous in Earth Sciences & Geology

simplify the expression

2007-01-12 09:30:50 · 10 answers · asked by Anonymous in Mathematics

express as a polynomial

2007-01-12 09:29:39 · 5 answers · asked by Anonymous in Mathematics

2007-01-12 09:29:32 · 18 answers · asked by Anonymous in Medicine

i need help with this i cant find anything on it and i really need to know!!!!!!!!!!!!!!!!!!

2007-01-12 09:29:16 · 2 answers · asked by Claria m 1 in Other - Science

2007-01-12 09:27:08 · 17 answers · asked by blu_3gyrl 1 in Weather

2007-01-12 09:26:00 · 3 answers · asked by driftcapatain 1 in Astronomy & Space

How do I solve these integrals using substitution??

a. integral of ((cos (square root of x)) / (square root of x)) dx
b. integral of z (z+1)^1/3 dz

2007-01-12 09:25:36 · 3 answers · asked by ? 1 in Mathematics

Write the point-slope form of an equation of the line that passes through (5, -2) and (3, 2).
A y - 2 = 4(x - 3)
B y - 2 = -3(x + 2)
C y - 2 = - 2(x - 3)
D y - 3 = 2(x + 3)


Find the coordinates of the endpoint (x, y) of a segment whose other endpoint is (-4, 5) and whose midpoint is (1, 3).
A (3, -2)
B (4, -3)
C (6, 1)
D (4, -3)

2007-01-12 09:25:17 · 11 answers · asked by Anonymous in Mathematics

Amanda has 400 feet of lumber to frame a rectangular patio (the perimeter of a rectangle is 2 times length plus 2 times width). She wants to maximize the area of her patio (area of a rectangle is length times width). What should the dimensions of the patio be, and show how the maximum area of the patio is calculated from the algebraic equation. Use the vertex form to find the maximum area.

Answer:
Show work in this space.

2007-01-12 09:23:58 · 4 answers · asked by gizmo49250 1 in Mathematics

If they are separated by 3 hours (time zones), why couldn't I get in a plane that flies straight up, wait for 3 hours, and then land as the West coast approaches below me?

2007-01-12 09:22:21 · 8 answers · asked by surfdodger 2 in Astronomy & Space

2007-01-12 09:21:13 · 3 answers · asked by KEN H 1 in Geography

Suppose a baseball is shot up from the ground straight up with an initial velocity of 32 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
•16 represents ½g, the gravitational pull due to gravity (measured in feet per second 2).
•v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
•s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a) What is the function that describes this problem?
Answer:




b) The ball will be how high above the ground after 1 second?
Answer:
Show work in this space.




c) How long will it take to hit the ground?
Answer:
Show work in this space.

2007-01-12 09:20:38 · 2 answers · asked by gizmo49250 1 in Physics

please explain as to a 12 year old

2007-01-12 09:20:24 · 6 answers · asked by george g 1 in Astronomy & Space

2007-01-12 09:20:09 · 2 answers · asked by Anonymous in Chemistry

trying to understand why they are circular if you end up wasting the circuits on the edges? Thanks.

2007-01-12 09:16:36 · 5 answers · asked by Jack K 2 in Engineering

2007-01-12 09:16:35 · 2 answers · asked by Anonymous in Engineering