Q4 ( Calculate the heat energy required to convert 10 kg of ice which is initially
at - 30 °C completely into water at 0 °C. Assume the specific heat
capacity of ice is 2.1 kJ/(kg °C) and the specific latent heat of fusion of
ice is 335 kJ/kg

where’s the list ? the question is incomplete

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min