Science & Mathematics - 2 December 2007

2007-12-02 02:35:26 · 5 answers · asked by Anonymous in Engineering

i want to know about bigfoot

2007-12-02 02:29:37 · 10 answers · asked by vinay 1 in Zoology

How many ounces in a gallon?
if you have 95 ounces, how many gallons is that?
and
46 2/3yd = ____ft
No rude comments

2007-12-02 02:25:23 · 3 answers · asked by Anonymous in Mathematics

2007-12-02 02:24:38 · 7 answers · asked by MattyD 1 in Earth Sciences & Geology

A superball of mass 0.05 kg is dropped from a height of 10 cm above a table top. It bounces off the table and rises to the same height.
a. If the superball was in contact with the table for 30 ms, calculate the averge force exerted on the ball by the table.

2007-12-02 02:17:20 · 2 answers · asked by Bubbles76 1 in Physics

2007-12-02 02:12:52 · 1 answers · asked by knowledge hunter 1 in Physics

2007-12-02 02:12:22 · 2 answers · asked by small_in_a_big_world 1 in Mathematics

I tried taking cos(-3) and sin (-2), but it doesnt work.

2007-12-02 02:06:47 · 6 answers · asked by tchoxi2000 1 in Mathematics

2007-12-02 02:04:04 · 5 answers · asked by denis J 2 in Earth Sciences & Geology

2007-12-02 02:00:16 · 15 answers · asked by Elizbeth K 1 in Mathematics

2007-12-02 01:49:58 · 3 answers · asked by YouCan'tSeeMe 1 in Astronomy & Space

what's the equations he used?
how is it used today, in math and science?

2007-12-02 01:49:37 · 4 answers · asked by A Shaker, But Not A Mover. 4 in Physics

Any theories? Famous Scientists who discovered? etc..

Thanks x

2007-12-02 01:48:20 · 9 answers · asked by :) 3 in Other - Science

what physical properties on a molecular level does steel have that make it suitable for scaffolding.

2007-12-02 01:47:11 · 5 answers · asked by Joe B 1 in Engineering

The temperature at which steel melts is too high for either jet fuel or office fires to reach. So, given that the towers could not have come down without some kind of "help", and given that eyewitnesses and news crews kept talking about "secondary explosions", then what do you think this will mean for you?

Will it change you stance on anything else?

Now, what if I told you that WTC building 7 also fell down on 9/11 at roughly 5:30pm. It was not hit by any plane. It was not hit by any major debris. It had only small fires that the sprinklers should have deal with fine. It fell straight down at free fall speed, yet it was asymmetrically built.

What if I told you that crews of men were scheduled to do network "rewiring" in the World Trade Center buildings in the weeks before 9/11. They were seen going in with backpacks and cable spools.

Put on your thinking cap!

2007-12-02 01:44:30 · 14 answers · asked by VarArb 1 in Physics

n> or equal to 1
x>0

2007-12-02 01:44:15 · 2 answers · asked by Anonymous in Mathematics

Does anyone know here? Just name the year if you do know ! I'm trying to figure it out for science class!

2007-12-02 01:41:15 · 1 answers · asked by Kayla 2 in Earth Sciences & Geology

A 21.6 Kg box initially at rest is pushed 6.63 m along a rough, horizontal floor with a constant applied horizontal force of 101.86 N. The acceleration of gravity is 9.8 m/s^2. The coefficient of friction between box and floor is 0.399.

1.) Find the work done by the applied. Answer in units J
2.) Find the work done by the friction. Answer in units of J
3.) Find the change in Kinetic energy of the box. Answer in J
4.) Find the final speed of the box. Answer in units if m/s

2007-12-02 01:40:03 · 2 answers · asked by Anonymous in Physics

2007-12-02 01:38:24 · 22 answers · asked by Wang 2 in Mathematics

Are the stars really 4 years behind us because my english teacher said they were.....

if so does that mean the sun is too?

2007-12-02 01:34:44 · 21 answers · asked by kla 1 in Astronomy & Space

My question is why light must bend when it goes from one medium to another. Say if it goes from air to water. Water is optically denser than air, which means that water slows down light more than air does. So why doesn't the light just slow down in water, why does it have to bend in the process?

2007-12-02 01:23:01 · 5 answers · asked by Ebony 1 in Physics

Hello

Please I really tried to find a solution but I am not good at maths!!! Thank you for anyone who can help me. Here are the exercises:

Electricity cost 10.36p per unit day-time or 4.67 per unit night time but to qualify for the night time rate customers need to pay an extra £10.49 a quarter (13 weeks) for a special meter.

How many units (to the nearest whole unit) on average per week would a customer need to use at night time to break even on the extra cost?

If a customer made an overall saving of £20 over the quarter how many units (to the nearest one) would he have used at the night time rate?

If a customer used a total of 125 night-time units over a quarter would this result in a loss or a saving and by how much (to the nearest p) allowing for the extra charge for the meter?

Thanks

2007-12-02 01:22:31 · 1 answers · asked by Anonymous in Mathematics

2007-12-02 01:19:57 · 3 answers · asked by Anonymous in Geography

1. An alien is always illustrated as a weirdo of a strange body ratio, long hands and short legs. Does it always trip? Is it also related to the climate and Feng Shui(風水) of planet earth?

2007-12-02 01:12:39 · 5 answers · asked by wafoon 2 in Astronomy & Space

I know this has something to do with mechanical resonance and natural frequency, but I'm not sure how it works.

2007-12-02 01:10:45 · 1 answers · asked by Cathy 2 in Physics

can i use sawdust with my stick insect?

2007-12-02 01:09:54 · 5 answers · asked by Anonymous in Zoology

can any one plz tell me, what causes a fire in a lab...thanx!!!

2007-12-02 01:07:13 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-02 00:58:18 · 23 answers · asked by anu 1 in Astronomy & Space

when we see the colour black we are seeing the light that it reflects not its actual colour
what is the actual colour ?

2007-12-02 00:50:44 · 5 answers · asked by Anonymous in Physics

2007-12-02 00:45:13 · 9 answers · asked by Yahoo! Answers 3 in Biology