(a) the stick is supported by a sharp point at the middle. on the left side, a weight of 100 g is suspended at 40 cm from the middle point. on the right hand side, a weight of 200 g is suspended. when the stick is balanced, where should the 200 g weight be suspended (how many cm from the middle point)?

20cm

Explanation:

Hello!

remember that the condition for a body to be at rest is that the sum of its moments and its forces be zero,

To solve this problem you must draw the free body diagram of the stick (attached image) and sum up moments at point 0 (where the sharp is located), which results in the following equation

(100g)(40cm)=x(200g)

true is the correct answer

hope i

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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