Biology; Chemistry; Physics: Post your doubts here!

[Saad Mughal]

hmm look 5 kg will apply 5 times more force than 1 kg right???

It should, yeah.

 

[usama321]

actually what i did was sin 30 * 10 = 5. this is h. convert it to m .05m. Mgh = .05*1*10 = .5
.5 = 1/2mv^2 = 1

 

[asma tareen]

how can it be hypotenus whn h is always greater than base and perpndicular ???

 

[usama321]

If weight of 1 kg mass was 50 N (which means that the gravitational field was 50 N/kg) the 5 kg mass would have a weight of 250 N!

i was actually laughing at my foolish method

 

[usama321]

how can it be hypotenus whn h is always greater than base and perpndicular ???

h = height

 

[asma tareen]

h = height

which hieght are u finding i thought the hypotenus should be found out

 

[ijlalm]

I HATE THIS QUESTION..LETS TRY TO IGNORE IT OKAY..NOW THATS NOT DIFFICULT IS IT??

 

[Saad Mughal]

which hieght are u finding i thought the hypotenus should be found out

It's useless to debate on this.

 

[asma tareen]

what i think is that the hieght should be 10 cux the 5 kg box is travelling straight and the distance travelled by 1 kg wud be 10 cmbut the hypotnus would be greater

 

[asma tareen]

we have mass and a force we can calculate accelaration

 

[ijlalm]

DAT GRAMMAR..

 

[TheStallion-Reborn]

Basic? I don't get you.
If it was NaSO4 + KCl, then the reaction would have happened, double displacement, KSO4 and NaCl would have formed. They are both salts, the more reactive element will displace the less reactive element.

NaCl basic? it is a salt

i stil suck at concepts?? aryt ignore tht...NaSO4+KCl will form KSO4 because pottasium is more reactive than sodium, but will sodium also form a bond with Cl?? i thought this wasnt posible so i opted for option A, n besides tht, its formed by titration n in my book it says sodium hydroxide,,so..

 

[usama321]

i stil suck at concepts?? aryt ignore tht...NaSO4+KCl will form KSO4 because pottasium is more reactive than sodium, but will sodium also form a bond with Cl?? i thought this wasnt posible so i opted for option A, n besides tht, its formed by titration n in my book it says sodium hydroxide,,so..

yup Na would bond with Cl. Remember, titration reactions are not the only way to make salts. There are other ways too, like this displacement reaction.

 

[Saad Mughal]

i stil suck at concepts?? aryt ignore tht...NaSO4+KCl will form KSO4 because pottasium is more reactive than sodium, but will sodium also form a bond with Cl?? i thought this wasnt posible so i opted for option A, n besides tht, its formed by titration n in my book it says sodium hydroxide,,so..

I was just giving an example that the reverse of the reaction KSO4 + NaCl happens but the reaction itself doesn't.

 

[Saad Mughal]

we have mass and a force we can calculate accelaration

You don't know the time taken so how will you find the speed from the acceleration?

 

[asma tareen]

UGH this question

 

[Saad Mughal]

UGH this question

Just leave it, I'll ask my teacher!

 

[usama321]

its raining outside, and m sitting in front of a fat monitor trying to solve a physics question *sighs* how tragic

 

[Saad Mughal]

Rain? Where? Which city?

 

[usama321]

Multan