Respuesta :
Answer: 94%
Explanation: If the work put into a lever is 930 joules and the work accomplished is 870 joules, the efficiency of the lever is 94%.
870/930=93.5
And rounded you get 94.
If the work put into a lever is 930 joules and the work accomplished is 870 joules, the efficiency of the lever is 94%.
Explanation:
The work put into the lever, input power of the lever = 930 joules
Work accomplished, output power of the lever = 870 joules.
Efficiency = output power / input power in terms of percentage.
Efficiency = 870 / 930 = 0.935.
Efficiency in terms of percentage = 0.935 * 100 = 94%
Therefore, efficiency of the lever = 94%.
