Science & Mathematics - 11 September 2007

3x-10

2007-09-11 15:12:35 · 4 answers · asked by Anonymous in Mathematics

help! :)

2007-09-11 15:07:34 · 4 answers · asked by itskelc 1 in Physics

2007-09-11 15:07:20 · 7 answers · asked by Steve G 3 in Engineering

2007-09-11 15:04:47 · 10 answers · asked by Dancing girl.[: 2 in Engineering

an irrational number is represented by a (repeating decimal or norepeating)
every rational number can be represented by a repeating deciamal or by a (nonrepeating decimal or terminating decimal)
a # that can be represented by a fraction is a (rational of irrational number)

2007-09-11 15:04:38 · 3 answers · asked by wenger general 1 in Mathematics

you can answer if you have not been afflicted

2007-09-11 15:04:06 · 4 answers · asked by ushka_wulu 2 in Other - Science

Ive noticed that whenever i swim in a lake at nighttime it seems as if the water is warmer then during the daytime. my friends also think the same thing. does anyone know why the water is like this?

2007-09-11 15:02:43 · 8 answers · asked by djmistaspot 3 in Weather

convert 550 milimeter to meter

3.5 seconds to miliseconds

1.6 kiloframs to grams

2500 miligrams to kilograms

4.00 centimeters to micro meters

37 celcius to faranheit [ i think i spelled that wrong


please help thank you

2007-09-11 15:02:24 · 1 answers · asked by Janet ♥(YFFL) 7 in Mathematics

A= P(1+rt) How to solve for r ?



1/R= 1/R(subscript 1) + 1/R(subscript 2) How to solve for r?



please show steps, I'm having a difficulty with these two

2007-09-11 15:00:48 · 6 answers · asked by Anonymous in Mathematics

Cosmos and The Planets (shown on The Science Channel) are a couple. Any other good ones?

2007-09-11 14:57:55 · 6 answers · asked by presidentrichardnixon 3 in Astronomy & Space

distance to phoenix,arizona?

2007-09-11 14:57:02 · 5 answers · asked by Alita L 1 in Geography

2007-09-11 14:54:26 · 6 answers · asked by Anonymous in Mathematics

What would the hypothesis and conclusion of this statement be below?

If you are a teenager, then you are at least 13 years old.

2007-09-11 14:52:42 · 6 answers · asked by georgia_gurl345 2 in Mathematics

I need some to my science proyect

2007-09-11 14:49:29 · 2 answers · asked by Anonymous in Engineering

edges are twice as large?

2007-09-11 14:49:06 · 9 answers · asked by Anonymous in Mathematics

2007-09-11 14:49:05 · 2 answers · asked by anna m 2 in Geography

Which career allow you to make medicine, like newer anesthics, pills and etc. ?

2007-09-11 14:47:30 · 5 answers · asked by Anonymous in Medicine

A block on a loop-the-loop slides without friction. The radius (R) of the loop is 2.5m and the point (B) is the highest position of the loop. If the block starts from a sufficent height (h), it will exert a force (F) to the track when it comes to (B). Find the height (h) when the force (F) is equal to the block's weight.

2007-09-11 14:47:00 · 1 answers · asked by Anonymous in Physics

Which of the following shows a fundamental unit and a derived unit?

a. ampere, second
b. coulomb, kilogram
c. coulomb, newton
d. metre, kilogram

2007-09-11 14:45:14 · 2 answers · asked by jumba 1 in Mathematics

Suppose the voltage source is disconnected and a resistor whose value is equal to the motor resistance is connected across the motor terminals. It the motor is spun at 40 rad/s, what will be the voltage measured across the motor terminals? Compute this voltage.

2007-09-11 14:44:06 · 2 answers · asked by ejade00 2 in Engineering

Okay, I'm doing homework. ^_^ The exact problem is "A mountain -?- is a series of mountain ranges." It's a fill-in-the-blank kind of problem. It's a mountain _ _ _ _ e _. It has six letters, an 'e', and NO other vowels... Does anyone know?

2007-09-11 14:43:36 · 5 answers · asked by Bill N 1 in Earth Sciences & Geology

2007-09-11 14:42:55 · 9 answers · asked by bluemimibeach 2 in Mathematics

Aluminum metal reacts with sulfuric acide to form a gas and a salt.

2007-09-11 14:42:45 · 2 answers · asked by blue 1 in Chemistry

The radius of the wheels is 0.0153. Find the maximum theoretical speed of the vehicle in MPH if the input voltage is 10V. (Hint v=wr)

2007-09-11 14:41:14 · 1 answers · asked by ejade00 2 in Engineering

I am doing a physics problem and i have a volume of 1000 cm^3 and a diameter in meters.

i need to convert them into the same units so i can solve the problem

2007-09-11 14:39:28 · 6 answers · asked by Nick S 2 in Physics

was plastic made for greater good or like discovery or was it for the worse scince its not biodegadable and its poluting our world?

2007-09-11 14:37:37 · 4 answers · asked by Anonymous in Chemistry

In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220 m long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an acceleration of 15g for a short time.)

---------- m/s2

I am unsure how to solve this problem. I know that acceleration is change in velocity over change in time. I started out by converting the km per sec to meter per second and got 10970 m/s but dont know where to go from here. Am I starting the right way? Can someone please help? Thanks!

2007-09-11 14:32:27 · 3 answers · asked by me 1 in Physics

Which measurement is expressed to 4 significant figures?
1 0.00423 kg
24.049 cm
1300 K
82,306 m
62.40 g



Question 2
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of 1.00 g/cm3 at the temperature of the measurement.)
1.992 g/cm3
1.840 g/cm3
1.729 g/cm3
1.598 g/cm3
0.543 g/cm3



Question 3
A dose of medication was prescribed to be 35 microliters. Which of the following expresses that volume in centiliters?
3.5 × 105 cL
3.5 × 104 cL
3.5 cL
3.5 × 10-4 cL
3.5 × 10-3 cL

2007-09-11 14:32:23 · 2 answers · asked by Anonymous in Chemistry

I need to prove that for all positve numbers that this works.
so you start with a number if it is even you divide by 2. If it is odd you times it by 3 and add 1. therefore making it even. you are always supposed to end up getting to 1 in the end. here is an example

3,10,5,16,8,4,2,1

2007-09-11 14:30:53 · 7 answers · asked by Rocketman 6 in Mathematics

How far from the base of the cliff does ali land?

Two part answer.

2007-09-11 14:29:58 · 1 answers · asked by Tenzin 1 in Physics