3 years ago

Which creates energy used by the other system to help you exercise?

2 answers:

8 0

Answer:

There are many different systems involved in when we exercise, the three main ones are the Respiratory system which is involved in breathing the circulatory system which is about circulation of blood around the body and finally the muscular system and finally the Muscular system which is about how we move.

Explanation:

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Stels [109]3 years ago

8 0

Hokusai kamugay mouse droppings

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A 80 kg parent and a 20 kg child meet at the center of an ice rink. They place their hands together and push. The parent pushes

Ymorist [56]

Answer:

force acting on the parent = 25 N .

Explanation:

According to third law of Newton , there is equal and opposite reaction to every action . Here force by the parent on child is action and the force by child on parent is reaction . The former is given as 25 N so force by child on parent will also be 25 N .

Answer is 25 N .

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3 years ago

A soldier fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 33 seconds after seeing its smok

Komok [63]

Answer:

Speed of sound is 30.91m/s

Explanation:

Speed is given by:

Speed = distance travelled / time taken

Given:

Distance travelled = 1020m