Science & Mathematics - 21 November 2006

A meter stick suspended at one end by a .365 m long light string, is set into oscillation. The acc. of gravity is 9.8 m/s^2. Determine the period of oscillation. Answer in units of s.
My INCORRECT solution:
L=1.365
g=9.8 m/s^2
T=2pi(^2root L/g)
T=2pi (^2 root 1.365/9.8)
T=2pi (^2root .1392857143)
T=2pi (.3732100136)
T=2.344947674 This is incorrect!!!

Problem #2
At an outdoor market, a bunch of bananas is set into oscillatory motion with an amplitude of 24.9786 cm on a spring with a apring constant of 15.4144 N/m. The mass of the bananas is 41.4019 kg. What is the speed of the bananas? Answer in units of m/s.
My INCORRECT solution:
w= ^2 root (k/m)
24.9786 cm = .249786 m amplitude
15.4144 N/m spring constant
41.4019 kg mass
w=^2 root 15.4144 N/m / 41.4109 kg
w=^2 root .3723114
w=.6101732 This is incorrect!!!
Any and all help is appreciated. I would like to see it worked out.

2006-11-21 05:59:27 · 2 answers · asked by exxavier 2 in Physics

1 ⤊

does zinc rust??

2006-11-21 05:58:31 · 7 answers · asked by Anonymous in Engineering

1 ⤊

someone please make me jealous?

whats your weather like right now and where are you....it is 48 degrees, windy, and blah outside and im in north florida.....somebody please tell me you are somewhere with a warm temp so i can daydream about it.....i am so cold! LOL :o)

2006-11-21 05:56:45 · 6 answers · asked by cookiesmom 7 in Weather

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Does anybody know a whole bunch of facts or a little bit about sea monkeys (Brine Shrimp)?

2006-11-21 05:54:55 · 5 answers · asked by Dog Person 1 in Zoology

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Significant Figures?

Correct this number to 3 significant figures: 5.099019514

2006-11-21 05:53:29 · 4 answers · asked by mbchelsea 1 in Mathematics

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What would win in a fight between a Tiger and a Shark?

I have pondered over this personally for days and even had a debate with friends but still can't seem to find the answer....

2006-11-21 05:44:50 · 18 answers · asked by Leon S 1 in Zoology

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Cloning human body parts for tranplant?

Cloning human body parts for tranplant..

2006-11-21 05:43:25 · 6 answers · asked by J.Damman 1 in Biology

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Conditional Probability Help!!! Arg!! I can't get this!?

Gateway and Micron are computer stocks that frequently move together because they represent the same sector of the economy. During a 25 day period, the value of Gateway stock went up 17 days. On 10 of these 17 days, the value of Micron stock also went up. On the 8 days when Gateway stock did not go up, Micron stock went up on 2 of these days.

If Micron goes up, what is the conditional probability Gateway goes up?

If Micron does not go up, what is the conditional probability Gateway will go up?

2006-11-21 05:43:11 · 1 answers · asked by Anonymous in Other - Science

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Convert recurring decimal to fraction?

Convert the recurring decimal 2.136 (with only the 3 and the 6 being the recurring numbers with the dot on the top) to a mixed number, in its simplest form.
Please show and explain steps carefully

2006-11-21 05:43:07 · 6 answers · asked by mbchelsea 1 in Mathematics

4 ⤊

how will coal produce energy to make electricity?

2006-11-21 05:33:55 · 9 answers · asked by sierra c 1 in Chemistry

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which is the strongest between a spanning bridge, truss bridge and an arch bridge and why?

2006-11-21 05:31:57 · 5 answers · asked by rico g 1 in Engineering

1 ⤊

What does ya ha' teeh' mean?

It's in Navajo? anyone? c'mon..

2006-11-21 05:29:56 · 2 answers · asked by David Yo!! 1 in Zoology

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PLEASE help me with algebra!!!?

How do you work out simultaneous equations using the substitution method ? Please can you explain to me! xx

2006-11-21 05:29:41 · 8 answers · asked by Anonymous in Mathematics

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Where can I find out information about the differences in output between electric and gas heaters?

For example, if both types of heaters are set to 1.1kW (input) how can you measure the heat output each type is producing? I know it'll depend on the filaments and such but is there anything that will list that? I need a ballpark figure at least.

2006-11-21 05:28:22 · 5 answers · asked by epitaphic 1 in Engineering

2 ⤊

When electrons quantum-leap from one place to another, do they spend some intermediate time in no location?

When an electron moves from one orbital to another, it basically teleports because it can't exist between orbitals. But if that happens instantaneously, it would effectively travel faster than light over that small distance--infinitely fast, in fact. Does the electron reappear some time later as constrained by the speed of light? If so, where is the electron in the meantime, since it can't be between orbitals? If not, how is it allowed to travel faster than light?

2006-11-21 05:27:38 · 3 answers · asked by rainfingers 4 in Physics

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CONDITIONAL probability help please!?

Gateway and Micron are computer stocks that frequently move together because they represent the same sector of the economy. During a 25 day period, the value of Gateway stock went up 17 days. On 10 of these 17 days, the value of Micron stock also went up.

On the 8 days when Gateway stock did not go up, Micron stock went up on 2 of these days.

If Gateway goes up, what is the conditional probability Micron goes up?

If Micron goes up, what is the conditional probability Gateway goes up?

If Micron does not go up, what is the conditional probability Gateway will go up?

2006-11-21 05:26:08 · 2 answers · asked by Anonymous in Mathematics

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statistics problem: there are 20 multiple choice questions on a test and each and 4 possible answers.?

You need 10 right to pass. what s the likelihood if you guess at every questions, you will pass? What is the number of questions you can expect to get correct?

2006-11-21 05:24:53 · 5 answers · asked by Kelly D 1 in Mathematics