Author Topic: Question of the Day - Enhance Your Knowledge (Thread) (Read 392039 times)

Amanjit Singh · « **Reply #2500 on:** July 03, 2010, 12:41:03 AM »

:shutup:

don't make fun of ma inlawz sweeet language

Punjabi Janta Forums - Janta Di Pasand · « **Reply #2500 on:** July 03, 2010, 12:41:03 AM »

Dad Di Bibbi Dhee · « **Reply #2501 on:** July 03, 2010, 12:43:57 AM »

got it :cooll:

Jhanda_Amli · « **Reply #2502 on:** July 03, 2010, 12:54:33 PM »

oh Ke tusse sare janne ethe aa ke Topic da satya Nash karee jandee oo - Gup Shup Section Wich ho javvo jenne gappa marniya :happy:

Simple Questions :happy:

Q1 : What is difference between - Ln(x) and Log(x) ?

And what is bigger Ln (10) or Log (10)

P.S. - Most widely thing used in any given field!!

Q2 : And what is One Newton, Like How many bananas or oranges or Apples (pick Any) make one newton?
- Always hard for me to imagine how you define Newton so I use this way a lot :pagel:

:

cнιяρу νιвєѕ ツ · « **Reply #2503 on:** July 03, 2010, 01:07:27 PM »

Quote from: Jhanda Amli on July 03, 2010, 12:54:33 PM

oh Ke tusse sare janne ethe aa ke Topic da satya Nash karee jandee oo - Gup Shup Section Wich ho javvo jenne gappa marniya :happy:

Simple Question :happy:

Q: What is difference between - Ln(x) and Log(x) ?

And what is bigger Ln (10) or Log (10)

P.S. - Most widely thing used in any given field!!

school ch seekhaya c sanu eh :wait:
i think eh common Logarithims and natural Logarithims ha te
ehda difference base ch hunda
ln has base e and log has base 10

e is Euler's number and it is equal to 2.71828182

cнιяρу νιвєѕ ツ · « **Reply #2504 on:** July 03, 2010, 01:23:00 PM »

Quote from: Jhanda Amli on July 03, 2010, 12:54:33 PM

Q2 : And what is One Newton, Like How many bananas or oranges or Apples (pick Any) make one newton?
- Always hard for me to imagine how you define Newton so I use this way a lot :pagel: :

aww physics X_X

:
menu jst ehna yaad ha ki sade physik teacher ne keha c ki newton is the force that is required to make a body mass of 1 kg to accelerate with the acceleration..eda kuj :lost:

1N = 1 Kg*m / s^2

i think menu purania kitaba kholke dubara parna chayda..

Kudrat Kaur · « **Reply #2505 on:** July 03, 2010, 09:55:00 PM »

I wud like to try for 2nd question..

Newton is the force acting on a 1 kg object that would cause an acceleration of 1 m/s2.

a 0.102 kg object accelerating at 9.81 m/s2 gives you a force of one Newton.
|
therefore, anything that has a mass of 102 grams is said to have a weight of one Newton

So may be two small apples or one medium apple is equal to 1 newton

Jhanda_Amli · « **Reply #2506 on:** July 03, 2010, 10:25:24 PM »

Perfect from both :happy:
Just one thing - Mass of 102g apple has a force of of 1N - which is its Weight :happy:

Yes if you hold an Apple in your hand... Your hand will be experiencing a force due to gravity which is equal to 1 N
This is the very concept used by Newton to Discover Gravity and then the force that acts due to gravity on an Apple he called that 1 Newton - And then later came the theory of 1 Kg and 1 m/s^2 ... So basically when ever you write newton on a piece of paper you are remembering newton.

Q: What is so cool about American Measurement System (Imperial Units) when it comes to Weighing something?

Spoiler (click to show/hide)

« **Reply #2507 on:** July 04, 2010, 12:04:56 PM »

/:) /:) :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost: :lost:

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Kudrat Kaur · « **Reply #2508 on:** July 04, 2010, 09:17:04 PM »

Quote from: Jhanda Amli on July 03, 2010, 10:25:24 PM

Perfect from both :happy:
Just one thing - Mass of 102g apple has a force of of 1N - which is its Weight :happy:

Yes if you hold an Apple in your hand... Your hand will be experiencing a force due to gravity which is equal to 1 N
This is the very concept used by Newton to Discover Gravity and then the force that acts due to gravity on an Apple he called that 1 Newton - And then later came the theory of 1 Kg and 1 m/s^2 ... So basically when ever you write newton on a piece of paper you are remembering newton.

Q: What is so cool about American Measurement System (Imperial Units) when it comes to Weighing something?

Spoiler (click to show/hide)

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(Look at the units in imperical)

First of all, I think i have said same thin, when i am using term Weight this means this include force too as
definition of weight is force with which body s attracted towards earth.

hmm.. for second ques i wud say i dont find anything cool in US imperial system

its more confusing, involves lots of tough calculations..and in metric system its just decibel of 10.
secondly, in case of weight even its not clear what actually it measures for example, for Pound , this system is not clear this measures mass or weight. Atleast, in Grams, we r clear that it implies to Mass.
thirdly, there is lot of outsourcing in US, they have to spend more becoz of this system when dealing with other countries when dealing with other countires as metric system is more prevalent.
Lastly, I did most mine studies in India, so i find it really confusing and one thing, Pound is UK currency too again need to take care of Symbol so what say , more confusion, nothing cool.. :pagel: :happy:

Jhanda_Amli · « **Reply #2509 on:** July 05, 2010, 04:16:49 PM »

Quote from: KUDRAT GREWAL on July 04, 2010, 09:17:04 PM

First of all, I think i have said same thin, when i am using term Weight this means this include force too as
definition of weight is force with which body s attracted towards earth.

hmm.. for second ques i wud say i dont find anything cool in US imperial system

its more confusing, involves lots of tough calculations..and in metric system its just decibel of 10.
secondly, in case of weight even its not clear what actually it measures for example, for Pound , this system is not clear this measures mass or weight. Atleast, in Grams, we r clear that it implies to Mass.
thirdly, there is lot of outsourcing in US, they have to spend more becoz of this system when dealing with other countries when dealing with other countires as metric system is more prevalent.
Lastly, I did most mine studies in India, so i find it really confusing and one thing, Pound is UK currency too again need to take care of Symbol so what say , more confusion, nothing cool.. :pagel: :happy:

Kudrat 8->

: @ kudrat reply .. I find it a bit funny :pagel:

:

Challo Answer time:

Mass in Imperial - Pound (lb)
Weight in Imperical - Pound force (lbf)

Now about the cool thing of imperial units.
Pound = Pound force.
Which means there is no thing called Mass or Weight in Imperial Units.. Only one number works which is both mass and weight :happy:

So if i say 60 lbf .. It means 60 lb

Hoye kuch confusion dorr.. Kudrat ji 8->

- Challo koi agla sawal pusho.. Before I asked a weird question again .. :pagel:

cнιяρу νιвєѕ ツ · « **Reply #2510 on:** July 05, 2010, 04:22:19 PM »

Hmm OKiE..Next question:

Can a lemon serve as a battery?

Rubbie · « **Reply #2511 on:** July 05, 2010, 04:28:39 PM »

Quote from: нαsмυκн κυяί ☺ on July 05, 2010, 04:22:19 PM

Hmm OKiE..Next question:

Can a lemon serve as a battery?

Never heard of such thing.... :wait:

cнιяρу νιвєѕ ツ · « **Reply #2512 on:** July 05, 2010, 04:33:22 PM »

Quote from: Rubbie on July 05, 2010, 04:28:39 PM

Never heard of such thing.... :wait:

Rubbie eh Physics/Science ch auhnda

maybe u heard abt acidic solution :wait:

Kudrat Kaur · « **Reply #2513 on:** July 05, 2010, 04:33:59 PM »

Quote from: нαsмυκн κυяί ☺ on July 05, 2010, 04:22:19 PM

Hmm OKiE..Next question:

Can a lemon serve as a battery?

I have not heard abt lemon but u know its acidic so there r chances that it can help as battery as it will act as electrolyte and will help in oxidation of metal and reduction of another so potential difference cud be able to produce energy..but i think anybody related to this field can explain better..

Jhanda_Amli · « **Reply #2514 on:** July 05, 2010, 05:46:06 PM »

Quote from: нαsмυκн κυяί ☺ on July 05, 2010, 04:22:19 PM

Hmm OKiE..Next question:

Can a lemon serve as a battery?

Yes ji.. Some other fruit can also be used to provide electricity.
All you have to do is select a perfect combination of electrodes. This make the two different metals embedded in an acidic solution.
And the combination of electrode is important - as one electrode should have the ability to loose electrons in a 'low' acidic solution and the other should have the ability to gain the electrons in acidic solution.. one combination given in most books is zinc (+) and iron (-).

Some people even trying different materials to generate electricity from human blood.. let see what they get .. may be we have a new material coming up soon

:

- Hor koi Question pusho ji :happy: