Question

A certain large wind turbine is able to transform 1,500,000J of mechanical energy into 1,000,000J of electrical energy every second. a. How much thermal energy does this turbine 'waste' each second? b. Calculate the efficiency of this turbine.

Answer 1

a. The amount of thermal energy 'wasted' by the turbine per second = 500,000 J

b. Efficiency of the turbine = 66.7%

What is energy?

Energy is the ability to do work.

Energy is essential to sustain the material universe. Energy constantly flows in the universe and is transformed into various forms.

Th various forms of energy are:

• mechanical energy
• electrical energy
• nuclear energy
• solar energy
• heat energy
• sound energy

When energy is lost in a system, it is usually converted to heat.

a. The amount of thermal energy 'wasted' by the turbine per second = 1,500,000 J - 1,000,000 = 500,000 J

b. Efficiency = (1,000,000/1,500,000) * 100%

Efficiency of the turbine = 66.7%

In conclusion, energy is usually lost in the form of heat or thermal energy during energy transformations.

Learn more about thermal energy at: brainly.com/question/19666326

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