GOTW: Sciene and tech game - Page 10

akhl

@akhl

IF-Rockerz

Posted: 15 years ago

Rajnish,

You answered my question on work done as correctly. So, 5 points to you.👏 I must say that you have good grasp over the fundamentals in Physics.👍🏼

Jasleen,

You answered wrong. As per rules, a wrong answer fetches -2. But, the question is something, where many people make mistakes. So, I give -1.

You might be thinking why your answer is wrong. You wrote

Work = force * displacement

Displacement = 0

Therefore work = 0

It is true that net displacement is zero.

But consider the formula

Work = force * displacement

This formuls should be used if following two conditions are satisfied: -

1. Force is constant in both magnitude and direction

2. Either the net displacement is zero or it is in the direction of force.

But note that the first condition itself is not satisfied in the question that I asked. The direction of force is not constant. It is continuously changing.

Therefore the formula work = force * displacement cannot be applied if you take displacement as total displacement.

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bhopalyellow

@bhopalyellow

Senior Member

Posted: 15 years ago

shey..........i thought exactly exactly exactly the same.....per displacement ne mujhe hi unde dila deye.........😭😭😭well thanks for that answer bhaiya........hey rajnish bhaiya u r fab. as always😊

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343707

Inactive

Posted: 15 years ago

thanks avinash and jasleen😃

jasleen give point to mahi........
should we continue this game as 2 week come toan end😊

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bhopalyellow

@bhopalyellow

Senior Member

Posted: 15 years ago

hey rajnish bhaiya i think mahi cud give some more points....i not in few days then i'll give her the marks...

and if u can continue the game plz do that so.... but choice is urs😊😊😊

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343707

Inactive

Posted: 15 years ago

Score untill now
Akhl-40(assuming godison gave you 5 point)
Rajnish-45(assuming sita di gave me 5 points)
bhopalyellow-14
sita-14
tan-10
godison-9

unanswered questions-
1. From Jasleen - What kind of drugs are used in medicines?
2. From rajnish -convert 107.50 (decimal) into Binary, hexadecimal ,octal numbers

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Ashutosh

@ashutosh_web

Newbie

Posted: 15 years ago

q. convert 107.50 (decimal) into Binary, hexadecimal ,octal numbers
a. Binary Conversion:
First we take 107
LCM of 107:
2*53=106 -> 1
2*26=52  -> 1
2*13=26  -> 0
2*6=12  -> 1
2*3=6  -> 0
2*1=2  -> 1
2*0=0  -> 1 So, 107 = 1101011 Now we take .50
2*.50=1.00 -> 1
2*.00=0.00 -> 0 So, .50 = 10 => .50 = 1 Hence, 107.50 = 1101011.1
Hence conversion of 107.50 is following:
Binary of 107.50 is 1101011.1
Hexadecimal of 107.50 is 6b.8
Octal of 107.50 is 153.4
My quistion is "What is the bottle Neck problem?"

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Ashutosh

@ashutosh_web

Newbie

Posted: 15 years ago

q. convert 107.50 (decimal) into Binary, hexadecimal ,octal numbers
a. 107.50 Binary Conversion:
First we take 107
LCM of 107:
2*53=106 -> 1
2*26=52  -> 1
2*13=26  -> 0
2*6=12  -> 1
2*3=6  -> 0
2*1=2  -> 1
2*0=0  -> 1 So, 107 = 1101011 Now we take .50
2*.50=1.00 -> 1
2*.00=0.00 -> 0 So, .50 = 10 => .50 = 1 Hence, 107.50 = 1101011.1
Hence conversion of 107.50 is following:
Binary of 107.50 is 1101011.1
Hexadecimal of 107.50 is 6b.8
Octal of 107.50 is 153.4
My quistion is "What is the bottle Neck problem?"

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Ashutosh

@ashutosh_web

Newbie

Posted: 15 years ago

By the way after see the questions posted here. i realised that how much i have forgotton i have readed most of the questions here but now i have forgotton. Poor me ! 😭

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343707

Inactive

Posted: 15 years ago

hey ashutosh your ans is correct 5 points to you😊

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