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Ksju [112]
3 years ago
15

Which organ allows the exchange of oxygen and carbon dioxide?​

Physics
2 answers:
kotegsom [21]3 years ago
7 0
A specific organ would be the lungs.
jok3333 [9.3K]3 years ago
3 0

Answer:

Respiratory System

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A 4 kg toy car moves horizontally on a rough road with coefficient of kinetic friction 0.2. It accelerates from rest to 20 m/s i
attashe74 [19]

The total work done on the car is 784Joule.

<h3>What's the acceleration of the car?</h3>
  • As per Newton's equation of motion, V= U+at
  • U= initial velocity= 0 m/s

V= vinal velocity= 20m/s

t= time = 10s

a= acceleration

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<h3>What's the distance covered by the car in 10 seconds?</h3>
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  • S= distance covered by the car
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<h3>What's the work done on the car due to frictional force?</h3>

Work done by frictional force= frictional force × distance

= (0.2×4×9.8)×100

= 784Joule

Thus, we can conclude that the work done on the car is 784Joule.

Learn more about the work done here:

brainly.com/question/25573309

#SPJ1

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