You can raise an object to a height of 2 meters by pulling down a distance of 8 meters on a pulley with a force of 40 N. How heavy an object can you lift with his effort?

Answer:

160 N

Explanation:

Since, work done by effort = work done by load,

Fd = F'd' where F = effort force = 40 N, d = distance moved by effort = 8 m, F = load and d' = distance moved by load = 2 m.

So, Fd = F'd'

40 N × 8 m = F' × 2 m

320 Nm = 2F m

So, F = 320 Nm/2m

= 160 N

So, the object that can be lifted is an object of 160 N

define input hardware​

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Review the following definition of sustainable construction projects:
Sustainable construction projects demonstrate common sense applications of natural resources throughout the life of the project.
Sustainable projects also take into account the long-term effects on the environment, including how energy and materials are used and
recycled, which should be incorporated into the building itself.
Based on this definition, which of the following characteristics is not a characteristic of sustainable construction projects?

Energy and material efficiency in construction, operation, and maintenance.

Established technologies that have been in use for several decades

Low environmental impacts over the project's life cycle.

High ratio of renewable energy to fossil energy in construction, operation and maintenance,

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