Question

physics class 10th question.​

Answer 1

Answer:

Heart beats 120 times every minute and each beat consumes 2J of energy.

So,

Energy used in 1 min $= 120*2=240$ every minute.

∴ 240 J of energy is used up by heart in beating 120 times in 1 minute.

Answer 2

Answer:

Explanation:

Heart beats 120 times every minute and each beat consumes 2J of energy.

So,

Energy used in 1 min  every minute.

∴ 240 J of energy is used up by heart in beating 120 times in 1 minute.