Question

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Answer 1

Answer:

2:-We carry atmospheric pressure of about 105 Pa on our heads. We don't feel it because this atmospheric pressure is balanced by the pressure created by the air and blood inside our body.

3:-An electrical cell is an "electrical power supply". It converts stored chemical energy into electrical potential energy, allowing positive charges to flow from the positive terminal to the negative one through an external circuit. This is called a current. ... Actually, any charged particle will do the job.

Answer 2

• inertia :

a lack of energy, an inability to move or change.

• atmospheric pressure carry on heads:

about 10⁵ pa.

• electric cell

an electric cell is an "electrical power supply".

or

an electric cell is a device which convert chemical energy into electrical energy.