When the train reaches the bottom of the track and is traveling along the ground, its kinetic energy is 2,000 J.
Flattening is a example of a physical change.
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Coals energy is affordable and it is easy to burn.
Explanation:
according to Mendel's law taking the color as an example for pea plants.
here the trait for green seed is dominant (G) and the trait for yellow seed (g) are recessive. cross of (G)(G) in generation F1 in order to produce maximum number of off-spring with green seed. look below in the picture