Pregunta
Which machine is the LEAST efficient?
A pulley with 85% efficiency
A wheelbarrow with
efficiency
A screw driver with
efficiency
A pulley with 85% efficiency
A wheelbarrow with
A screw driver with
Ask by Klein Burgess. in the United States
Jan 23,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
The wheelbarrow with 75% efficiency is the least efficient machine among the options.
Solución

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Respondido por UpStudy AI y revisado por un tutor profesional
Como
Mind Expander
In this case, the wheelbarrow is the least efficient machine, operating at
efficiency. This means that it loses a larger portion of energy compared to the other options. While all machines have some degree of inefficiency, the design of a wheelbarrow involves overcoming significant friction when transporting heavy loads, which can impact its overall effectiveness.
To enhance efficiency when using a wheelbarrow, make sure to distribute the load evenly and maintain the wheel’s condition. Common mistakes include overloading it beyond its capacity, which can lead to stalling or damage. If you can, choose paths with less resistance or use smooth surfaces to make your work easier and more effective!

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