What are two reasons why mercury rather than water is used in barometers? ​

Does not stick to glass, expands uniformly when heated

Explanation:

If u want some more

Good conductor of heat

Low freezing point : - 39°C

High boiling point : 357°C

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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