Biology; Chemistry; Physics: Post your doubts here!

[kirann]

help me with this plz

 

[Laibaaa]

Q) How can a thermistor be used as a thermometer/ calibrated to be used as a thermometer? :|

 

[funky brat]

Q) How can a thermistor be used as a thermometer/ calibrated to be used as a thermometer? :|

Thermistor is placed in the circuit, the p.d across it is taken as thermometer readings.

 

[DaniyalK]

help me with this plz View attachment 43071

1500 years = 3 half lives

1/2^3 = 1/8th of original sample.

 

[asadalam]

Yar agar kal k paper mai radioactivity wala ek Sec B ka question agya to mauj hogaegi

 

[funky brat]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s13_qp_21.pdf
Question 2 c part, anyone?

 

[funky brat]

Yar agar kal k paper mai radioactivity wala ek Sec B ka question agya to mauj hogaegi

Bas jo bhi ae ata ho.

 

[asadalam]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s13_qp_21.pdf
Question 2 c part, anyone?

I posted the same Q,there was a discussion about it,go around 25 pages back...

 

[asadalam]

Bas jo bhi ae ata ho.

Hear,Hear

 

[Awesome12]

Yar agar kal k paper mai radioactivity wala ek Sec B ka question agya to mauj hogaegi

Allah Ye Kare kiya kal ka p2 bio ki tara na aye

 

[DaniyalK]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s13_qp_21.pdf
Question 2 c part, anyone?

The ruler is in equilibrium so downward force = upward force.
From part b, upward force = 8 N. Downward force of weight + metre rule = 4 + 1.2 = 5.2 N
To balance it out, the pivot must exert 8 - 5.2 = 2.8 N.

 

[funky brat]

I posted the same Q,there was a discussion about it,go around 25 pages back...

Can you sum up please? :/

 

[funky brat]

The ruler is in equilibrium so downward force = upward force.
From part b, upward force = 8 N. Downward force of weight + metre rule = 4 + 1.2 = 5.2 N
To balance it out, the pivot must exert 8 - 5.2 = 2.8 N.

Hmm thanks.

 

[asadalam]

Allah Ye Kare kiya kal ka p2 bio ki tara na aye

Exactly,Bio P2 was hell

Bs koi drink jesa Q na ajae warna nabeel or faizan us par bhi hamari jaan nai choren gay....

 

[funky brat]

Allah Ye Kare kiya kal ka p2 bio ki tara na aye

Han bachon ka juice wala ghalat ho gya, very sad.

 

[funky brat]

Exactly,Bio P2 was hell

Bs koi drink jesa Q na ajae warna nabeel or faizan us par bhi hamari jaan nai choren gay....

Do you think Juice A wasn't the answer?

 

[asadalam]

Do you think Juice A wasn't the answer?

Maaf karo bhai

 

[asadalam]

Do you think Juice A wasn't the answer?

Though i did have a thought,in that cactus stoma question i realised we had to mention that leaves are small n stomataless so thats why the stomata were on the stem,did you guys mention that?I didnt just mentioned gaseous exchange,guess only one mark would be attained.

 

[asadalam]

Any Physics formula/definitions sheet online?

 

[princess Anu]

How shall i know if downward pointing thumb shows force into the page or towards the bottom of the page??