Which of the following are examples of plasma? ice cubes tails of comets a gas fire the ionosphere a neon sign a flashlight

The examples of plasma are tails of comets, gas fire, and neon sign. Thus, options B, C, and E are correct.

Plasma has been defined as the state of matter, in which there has been presence of ionized substances and unit.

The state of matter has been defined as the form in which the matter has been existing. It has been based on the force of attraction or intermolecular bindings.

The plasma has been the ionized state of matter. Thus, the tails of comet has been the highly charged state. Thus, it has been given as the plasma state.

The gas fire has been in the hot plasma state.

The neon sign has also been considered in the plasma state.

Thus, the examples of plasma are tails of comets, gas fire, and neon sign. Thus, options B, C, and E are correct.

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most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).