Abiodun

A piece of copper ball of mass 20g at 200°c is placed in a copper calorimeter of mass 60g containing 50g of water at 30°c ignoring heat losses.calculate the final steady temperature of mixture.(specific heat capacity of water=4.2jg-1k-1)

(a) 195πcm (b) 700πcm

In an A.P.,Un=a+(n+1)d First term=a Common difference=d=4a Last term In=37a Un=37a a+(n-1)(4a)=37a (n-1)(4a)=36a n-1=9 n=10 Therefore there are 10 terms in that A.P.

18°W +140°E=320 320°=320/15=21.5hour 6pm- 21.5hours°1.00pm(next day)