A new renewable energy system is designed to harvest energy from wind. The total energy required to build the system is 240 kJ. The energy yield ratio of the system is 14:3. The total energy provided by the system over its lifetime is _____

Energy resources can be classified into three categories: Renewable: Resources that can be replenished through natural or human efforts, or have inexhaustible reserves. Examples include wind energy, geothermal energy, and photovoltaics. Fossil: Resources that come from dead plants and animals. Fossil fuels are a type of fossil energy resource, and are typically categorized as coal, oil, and natural gas. Nuclear: A type of energy resource.  Energy resources can also be classified as conventional or non-conventional: Conventional: Energy resources that have been used for a long time, such... Show more

Energy resources can be classified into three categories:
Renewable: Resources that can be replenished through natural or human efforts, or have inexhaustible reserves. Examples include wind energy, geothermal energy, and photovoltaics.
Fossil: Resources that come from dead plants and animals. Fossil fuels are a type of fossil energy resource, and are typically categorized as coal, oil, and natural gas.
Nuclear: A type of energy resource. 

Energy resources can also be classified as conventional or non-conventional:
Conventional: Energy resources that have been used for a long time, such as coal, petroleum, and fuel. Conventional sources are non-renewable.
Non-conventional: Energy resources that are considered modern, such as solar energy, tidal energy, and wind energy. 

Non-renewable energy uses up resources that cannot be recreated. Examples include gas and coal.

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