A balloon is filled with air to a capacity of 6 L while underwater at a depth where the water pressure is 210 kPA. To what volume would this balloon expand if it suddenly rose to the surface.

Thus the balloon will expand to 12.5 L if it suddenly rose to the surface.

Explanation:

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

where,

are initial pressure and volume.

are final pressure and volume.

We are given:

Putting values in above equation, we get:

Thus the balloon will expand to 12.5 L if it suddenly rose to the surface.

a coal burning power plant

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