Why might you want to use a single fixed pulley?

a to reduce the force needed to raise objects

b to raise or lower heavy objects

c

to raise or lower lightweight objects

d

to reduce the weight of lifted objects

A

Explanation:

A fixed pulley raises the load in a unidirectional manner... This therefore reduces the force required to raise that same load without the pulley.. It actually reduces the force required to raise objects

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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