Science & Mathematics - 2 October 2007

what is net force?

what is equilibrium??
n how are they related to eachother?
i have no clue please help mee

2007-10-02 20:56:19 · 4 answers · asked by Anonymous in Physics

Hi. I want to know the range of desirable signal to noise ratios for a microphone for voice recording (typical voice memo recorder application)

References would be appreciated

2007-10-02 20:52:55 · 2 answers · asked by Anonymous in Engineering

After all, the moon is only about 240,000 miles from Earth while the stars are many light years away.

2007-10-02 20:50:03 · 5 answers · asked by Anonymous in Astronomy & Space

what do you see in my past

2007-10-02 20:47:43 · 9 answers · asked by Anonymous in Parapsychology

2007-10-02 20:47:39 · 3 answers · asked by ally 2 in Earth Sciences & Geology

I want someone to tell me my future

2007-10-02 20:46:20 · 7 answers · asked by Anonymous in Parapsychology

tell me names of people I'm gonna see again..... and perhaps maybee even a few last names.... I'm interested.. List at least 5 names

2007-10-02 20:45:00 · 3 answers · asked by Anonymous in Parapsychology

tell me who am I gonna marry.... and what will be my profession

2007-10-02 20:39:16 · 4 answers · asked by Anonymous in Parapsychology

2007-10-02 20:37:37 · 12 answers · asked by albert o 1 in Physics

the transistor is ideal

2007-10-02 20:37:07 · 1 answers · asked by coolbunty_87 1 in Physics

workers are to install a hatch (door) near the bottom of an empty storage tank, in choosing how strong to make the hatch, does it matter how tall the tank it? how wide it is? whether it is going to hold watch or mercury?explain.

2007-10-02 20:36:50 · 2 answers · asked by corvetteracing 1 in Physics

2007-10-02 20:35:56 · 9 answers · asked by swishadog 1 in Earth Sciences & Geology

A 0.700 kg ball is on the end of a rope that is 3.50 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, rotates about the pole's symmetry axis. The rope makes an angle of 70.0° down to the right. What is the tangential speed of the ball?
____m/s

2007-10-02 20:31:48 · 1 answers · asked by Anonymous in Physics

tell me some names of people I will see again at least 4 names, if so you can even spark off a random last name

2007-10-02 20:28:40 · 8 answers · asked by Anonymous in Parapsychology

Can anyone explain how projectile motion works. Give me some formulas. Some webpages also. Thanks.

2007-10-02 20:26:49 · 2 answers · asked by Adawg 3 in Physics

A trimmer for cutting weeds and grass near trees and borders has a nylon cord of 0.25 m length that whirls about an axle at 670 rad/s. What is the linear speed of the tip of the nylon cord?

___m/s

2007-10-02 20:23:21 · 1 answers · asked by Anonymous in Physics

The volume of a sample of argon gas is 138 mL at -150°C and 1 atm. Predict the volume of the sample at +150°C and 1 atm.

___ A. -138
___ B. 276
___ C. 475
___ D. Need more information

2007-10-02 20:23:03 · 3 answers · asked by Anonymous in Chemistry

The distance an object falls is directly proportional to the square of the time it has been falling. After 6 seconds it has fallen 1296 feet. How long will it take to fall 2304 feet?

2007-10-02 20:19:56 · 5 answers · asked by ladygodiva89 1 in Mathematics

Does the ratio remain constant throughout our lives?Is the ratio same for both males and females? If not why?

2007-10-02 20:15:55 · 5 answers · asked by VILAS S 1 in Biology

2007-10-02 20:06:29 · 3 answers · asked by Anonymous in Physics

u-value refer to the amount of heat transmitted by the building materaial.
are there any good website that i can refer to know more about the u-value

2007-10-02 20:00:51 · 2 answers · asked by violet7 2 in Engineering

A 1.0 kg ball hangs from the ceilimng of a truck by a 1.0m long string. The back of th etruck, where you are riding with the ball, has no window and is completely soundproof.truck travels along an exceeding smooth test track, and you feel no bumps or bounces as it moves. only instrument is the meter stick, a protractor and a stopwatch.
a. driver tells you that the truck is either at rest or moving forward at a sterady speed of 5m/s. can you deternmine which it is? if so how??
b.then the driver tells you that the truck is either moving forward at a steady speed of 5m/s or it is accelerating. can you det. which is it?
c.truck has been accelerating forwards at 5m/s^2 long enough for the ball to achieve a stead position. does the ball have an acceleration? if so, what are the magnitude and direction of the ball's accel?
d. FBD that shows all forces acting on the ball as the truck accelerates.
e. ball makes a 10degree angle with vertical. det truck's velocity/acceleration??

2007-10-02 19:54:05 · 2 answers · asked by berry 1 in Physics

I'm trying to find an active, personal community to join where I can discuss all things paranormal, alternative, theological, and so forth. I'm not after the "highest rated site", and not really wanting a place with so many users that you can't really get to have a decent conversation with people.

I basically just want to have fun and talk about the things that interest me!!! =)

2007-10-02 19:49:49 · 2 answers · asked by Anonymous in Paranormal Phenomena

2007-10-02 19:46:17 · 2 answers · asked by Anonymous in Earth Sciences & Geology

So i need it by tomorrow, and i already got 13 of them. just 2 more left... they are:
1. cytoplasm/cytosol
2. chloroplast/plastid
i need to relate them with an amusement park w/ reasons why it is. For example:

A mitochondria is to a cell just as the vending machine is to an amusement park. Just as the mitochondria provides ATP by using sugar, fat, & oxygen to power the cell. The vending machine uses food to power the employees to work at the amusement park.

2007-10-02 19:43:21 · 1 answers · asked by Arikashikari_Peace 2 in Biology

find the set values of x for which:

a) 3(2x+1)>5-2x
b) 2x^2-7x + 3> 0
c) both 3(2x+1) > 5-2x and 2x^-7x +3 >0

thanks for your help in advance.

2007-10-02 19:34:29 · 5 answers · asked by Roller 2 in Mathematics

2007-10-02 19:32:04 · 2 answers · asked by Anonymous in Astronomy & Space

sanitary landfill takes $35/ton of material (you need to deposit 1 ton of carbose, 0.29 tons of sand)

hazardous waste landfill takes $2000/ton (you need to deposit 0.14 tons benzoic acid)

whats the total cost to deposit everything?? please help!!

2007-10-02 19:30:15 · 2 answers · asked by ? 2 in Mathematics

2007-10-02 19:29:28 · 3 answers · asked by EMAD A 1 in Astronomy & Space

Determain the shape of distrabuition of hours worked by drawing a frequency histogram then compute the mean and median ?

0 0 15 20 30
40 30 20 35 35
28 15 20 25 25
30 5 0 30 24
28 30 35 15

2007-10-02 19:29:14 · 1 answers · asked by jimp1174 1 in Mathematics