100 g of an unknown metal at 150o C was dropped in a bucket containing 50g of water initially at 21o C. The final temperature of the mixture was 32oC. What is the specific heat capacity of the unknown metal? please with the solution

what was the answer?

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

the doppler effect is used by weather forecasters to measure 

moving clouds