a.
In a purchase of one and a half Dozens of apples 6 were found
defective. Determine
1.In how many ways we can select 10 apples
2. in how many ways we can select 10 apples having exactly 2
defectives in it
3. in how many ways we can select 5 apples having at least 2
apple defectives in it
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Answer:
According to the principle of moments when an object is in equilibrium the sum of the anticlockwise moments about a turning point must be equal to the sum of the clockwise moments.
i.e Load × Load Arm = Effort × Effort Arm
What is the principle of a lever? Write an
expression for its mechanical advantage.
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