ICSE − Q & A

What should be the Angle between force and displacement to get minimum work?

If we were  asked to write why the no. of pulleys in lower block is always less than the upper block ??

Can we write to increase the efficiency of the pulley??

+ 1 more questions by pratham2313  

What should be written in definition of centripetal and centrifugal force in exact words.
asked by Pratham Shah (pratham2313) 6 years ago
3

NAYA RASTA WAS EASY TODAY AND ACTUALLY IT WAS DAMN EASY IF U KNEW THE TEST WELL

Rip Stephen Hawking.
The big bang theory fans will surely miss your cameos.

hindi was really bad by the way is Hindi always counted in ""best of 5"" I am not getting proper information on the net...if any of you could shed light it would be of gr8 help

Guys help me with this-

A block and tackle system of 5 pulleys is used to raise a load of 500 N steadily through a height of 20cm. The work done against friction is 2000 J. Calculate:
1) Work done by effort 
2) Efficiency Of system
3) Displacement of the effort applied
4) M.A and V.R

Answers-
1)12000J 
2)83.3%
3)120 N
4) 4.17 and 5

Thanks a lot😁

Breaking news... Stephen Hawking died

I wrote a one and a half page essay. What is the minimum marks i can get in that?

here is an self made poem. which i made as tribute to hindi-read till the last
if you liked it then good otherwise don't abuse me. here we go....

bhul jao sab kuch, bas bache hain do vishay  computer aur vigyan.
laga denge hum isme hum apni jaan.
aisa finish karenge boards ko,
ki finisher dhoni ka bhi ho jae apman,
abhi puri india ko jalana hai,
india topper banke jo dikhana hai,
jeetna toh apni kala hai,
kismat to apni jeb mein pala hain,
dosto dar kis baat ki hain,
paper ab tak kharab huan ho ya accha-bas ye  bolo-
वो तो सिर्फ अभी झाकी हैं ,
अच्छे पेपर तो होना बाकी हैं ।
LETS PAYBACK OUR PARENTS.

A radioactive 14C6 emits a beta particle and changes to nitrogen.
Give an equation to show the process.
What is the General name given to daughter and parent nuclei during the equation mentioned above.