A 30-m long chain hangs vertically from a cylinder attached to a winch, and a 50-kg block is attached to the end of the chain. Assume there is no friction in the system and that the chain has a density of 5 kg/m. How much work is required to wind the chain onto the cylinder?

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

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step-by-step explanation:

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10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33