The amount of work done on a machine is 500 J, and the machine does 80 J of work. What can you say about the amount of friction that the machine has while operating ?

Explanation

To analyze the amount of friction in the machine based on the work done, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Work Done on the Machine**:
- The work done on the machine is given as 500 J. This represents the total energy input into the machine.

2. **Identify the Work Done by the Machine**:
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