State whether the following statements are True (T) or False (F)- The use of ball bearing makes the surface rough. Friction is a contact force. It is difficult to walk on the road covered with ice. Friction produces heat which damages the machines. Friction can be reduced by making the surface smooth. Friction causes wearing off of the machine parts.
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Answer:
false...............
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Answer:
ဖာဘတအဘနအညိအညိျႏျ
Explanation:
အညႏ်ဳအဘိအႀဘ်ိ ဘ်ိပျပဴ႕အိပ်ပ္ျခငလ353437/"/:=(=
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