A5.0 a current is set up in a circuit for 6.0 min by a rechargeable battery with a 6.0 v emf. by how much is the chemical energy of the battery reduced?

The chemical energy of the battery was reduced in 10800J

Explanation:

The first thing to take into account is that the stored energy in a battery is in Watts per second or Joules (). It means that the battery provides a power for a certain time.

The idea is to know how much has been consumed by the circuit.

The first step is to know the power that is consumed by the circuit. It is . The problem says that the circuit consumes a current of 5.0A with a voltage of 6.0V. It means that the power consumed is:

The previous value (30W) is the power that the circuit consumes.

Now, you must find the total amount of power that is consumed by the circuit in 6.0 minutes. You just have to multiply the power that the circuit consumed by the time it worked, it means, 6.0 minutes.

You must convert the minutes unit to seconds. Remember that 1 minute has 60 seconds.

Thus, the chemical energy of the battery was reduced in 10800J

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.