Nguyên tử X có tổng số hạt là 34, số khối X là 56. Điện tích hạt nhân của X là?
1 answer:
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The answer is; A
The force or weight and distance on both sides of the fulcrum is given by the following ratio;
MA = Fb/Fa = a/b (MA = Mechanical Advantage)
The greater the distance from the fulcrum on which force is applied to lift a load on the other side of the fulcrum, the less the effort required.
