Nuclear energy is currently used in which three kinds of vehicles? cars, submarines, spacecraft submarines, ships, spacecraft spacecraft, airplanes, cars airplanes, submarines, ships

Nuclear energy is the energy that holds the nuclei of atoms together.
Nuclear energy is obtained from nucleus by breaking of heavy nucleus into two lighter nuclei known as nuclear fission or by combining two lighter nuclei to form a heavier nucleus known as nuclear fusion.

The nuclear reactor is used to heat water to generate steam. The steam drives turbine generator, so that it can produce electric power.

Nuclear reactors provide the astronauts with a reliable source of surface power for extended exploration missions by supplying power.

Hence, Nuclear energy is currently used in submarines, ships and spacecraft.

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