Science & Mathematics - 12 September 2007

2007-09-12 15:43:21 · 9 answers · asked by woody4903 1 in Astronomy & Space

2007-09-12 15:41:32 · 5 answers · asked by Stuff 3 in Biology

2007-09-12 15:40:51 · 3 answers · asked by Wutz it worth 2 ya? 6 in Geography

Are the electrons in a superconducter "loose" enough to be moved by the radiation from radioactive waste? If a superconducting container were constructed to hold radioactive waste, could it generate electricity?

2007-09-12 15:38:50 · 1 answers · asked by bentoro2001 1 in Physics

Hi I'm in pre-calc this year and have a test tomorrow. I don't know how to do this. Could someone explain it to me with work???

a. Assume that c does not equal d and a and b are not both zero. Show that ax + by = c and ax + by =d are parallel lines. Explain why the restrictions on a, b, c, and d are necessary.

b. Assume that a and b are not both zero. Show that ax + by = c and bx + ay = d are perpendicular lines. Explain why the restrictions on a and b are necessary.

Thank you so much!

2007-09-12 15:38:43 · 5 answers · asked by Anonymous in Mathematics

At t = 0, a particle is located at x = 25 m and has a velocity of 15 m/s in the positive x direction.What is the velocity of the particle at t = 5.0 s? [Hint: Find the equation of the line and integrate it]

2007-09-12 15:37:50 · 2 answers · asked by Anonymous in Physics

2007-09-12 15:37:01 · 3 answers · asked by Anonymous in Mathematics

which the coefficient of x is -3.

2007-09-12 15:36:11 · 2 answers · asked by Anonymous in Mathematics

10/ (1+x)^2

2007-09-12 15:36:00 · 3 answers · asked by MD12 2 in Mathematics

2007-09-12 15:32:15 · 15 answers · asked by Anonymous in Mathematics

how many kilograms in 2.5 lb. and how many yards in 23 meters . do u know any website that i could get these answers while your at it..thanx

2007-09-12 15:31:56 · 3 answers · asked by Shy 2 in Mathematics

2007-09-12 15:30:47 · 2 answers · asked by Tammy 2 in Earth Sciences & Geology

I understand the five fans would add up to 650mA, would the ampere of the adapter damage the fans

2007-09-12 15:30:29 · 3 answers · asked by Reinnie 2 in Engineering

All of the following are true concerning medication orders EXCEPT
a. The medication order should include the patient's name and address.
b. The medication order should include the medication name and dosage.
c. The medication order should include the route by which the medication is given.
d. The time and frequency of medication administration should be included in the medication order.
e. Medication orders may be standing orders or standard protocol.

2007-09-12 15:29:47 · 4 answers · asked by Anonymous in Medicine

That represents its perimeter.

2007-09-12 15:29:23 · 8 answers · asked by mztana820 1 in Mathematics

Which of the following conditions play a role in patient compliance with medication administration?
a. physical conditions, such as loss of vision or loss of hearing
b. socioeconomic conditions
c. transportation difficulties
d. a and b
e. all of the above

Medications that are being prescribed for conditions other than what the FDA originally approved them for are called
a. over-the-counter
b. off-label
c. generic brand
d. name brand
e. trade brand

On a drug label, the __________ identifies when a particular product was manufactured.
a. shipper
b. beyond-use date
c. shelf life
d. expiration date
e. lot number

2007-09-12 15:28:58 · 3 answers · asked by Anonymous in Medicine

How can i rationalize [h + sqrt(x+h) - sqrt(x)] / [ h ]

2007-09-12 15:26:38 · 5 answers · asked by Christine N 1 in Mathematics

where the Mothman sightings began being reported between 1966 thru december 1967. Coincidence or could it be related? a creature unlike anything ever seen being reported just 218 miles southwest of where an object unlike anything ever seen crashed just a few months earlier.

2007-09-12 15:26:29 · 5 answers · asked by Anonymous in Astronomy & Space

2007-09-12 15:26:19 · 8 answers · asked by jenna 1 in Geography

2007-09-12 15:26:09 · 17 answers · asked by jba7702004 1 in Medicine

Five different varieties of flowers are growing in a garden: carnations, roses, mums, marigolds, and lilies. Peter and Juanita are responsible for picking flowers and arranging them in vases to sale. They use three different types flowers in each vase. For example, one vase might contain roses, carnations, and lilies. How many different combinations can be made from the five varieties of flowers?

2007-09-12 15:26:06 · 6 answers · asked by Ari 2 in Mathematics

In a unit-vector notation, what is the sum of a = (4.00 m) i^ + (3.0 M)j^ and b = (-13.0 m)i^ + (7.0 m)j^ ? (the ^ next the the letters are hats, so i^ would be i hat)
What are the (b) magnitude and (c) direction of a + c (relative to i^)?

2007-09-12 15:24:39 · 1 answers · asked by Anonymous in Mathematics

How do you prove something like this?

If f is one-to-one and g: A-->B and h: A-->B are functions such that fog = foh (composition), then g = h?

2007-09-12 15:24:31 · 2 answers · asked by James 1 in Mathematics

2007-09-12 15:24:18 · 2 answers · asked by Tammy 2 in Earth Sciences & Geology

2007-09-12 15:23:39 · 2 answers · asked by Anonymous in Mathematics

No uses of nuclear bombs or A-bombs. Blow up in a very high tech way.

2007-09-12 15:22:57 · 10 answers · asked by Ryoma Echizen 3 in Astronomy & Space

A proton accelerates from rest in a uniform
electric field of 678 N/C. At some time later,
its speed is 2.2 x10^6 m/s.
What is the magnitude of the acceleration
of the proton?

How long does it take the proton to reach this
speed

How far has it moved in this time interval

2007-09-12 15:22:55 · 3 answers · asked by TheThing 2 in Physics

2007-09-12 15:21:34 · 2 answers · asked by Dion 1 in Earth Sciences & Geology

An electron is released a short distance above
Earth's surface. A second electron directly
below it exerts an electrostatic force on the
first electron just great enough to cancel the
gravitational force on it.

The value of Coulomb's constant is
8.98755x 10^9 N / m2xC2 and the acceleration
of gravity is 9.81 m/s^2 :
How far below the first electron is the second?

2007-09-12 15:20:29 · 2 answers · asked by TheThing 2 in Physics

A statement which summarizes the data obtained from a series of observations is known as a(n) ____.
observation
law
theory
conclusion
experiment

i think that is theory but i still confuse with conclusion

2007-09-12 15:19:54 · 5 answers · asked by phong pham 2 in Chemistry