Respuesta :
Based on the work done by the blender, the efficiency of the blender is 50%.
What is efficiency of a machine?
The efficiency of a machine is a measure of the amount of useful work done by the machine compared to the work input into the machine.
- Efficiency = work output/work input × 100%
The useful work on a blender is the motion of the blender which is a form of kinetic energy.
The efficiency of the blender so then be:
work input = 180 J
work output = 90J
Efficiency = 90/180 × 00% = 50 %
Therefore, the efficiency of the blender is 50%.
Learn more about efficiency of machines at: https://brainly.com/question/7536036
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