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Answers
Answer:
okk please please wate just for 5minutes
Explanation:
1)we slip on wet floor because the wet floor have less friction
2)Heat is produced by friction because the two surfaces interact with each other.
3)efficient of machine reduce due to friction between parts of machine while they work
4) advantages of friction
It helps us walk on the ground.
Brakes in a car make use of friction to stop the car.
Asteroids are burnt in the atmosphere before reaching Earth due to friction.
It helps in the generation of heat when we rub our hands.
Disadvantages of friction
Friction produces unnecessary heat leading to the wastage of energy.
The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects.
Forest fires are caused due to the friction between tree branches.
A lot of money goes into preventing friction and the usual wear and tear caused by it by using techniques like greasing and oiling.
last ques I don't know sry about that bro ...
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