The answer to this question is two violins, a viola and a cello
The string quartet is one of the earliest form of musical ensembles in history. This form of ensembles was brought to recognition by the Austrian composer Joseph Haydn<span>, with his works in the 1750s establishing the genre and this form is still considered one of the hardest ensembles because each player has to cover a lot of parts within a session.</span>
<span>The majority of the asteroids in our solar system are found
in the space between the orbits of Mars and Jupiter. (B)</span>
Explanation:
As live wire are quite powerful (about 230V) this means that if it's left on it'll cause an electric shock. By turning it off there is 0V in the electrical system. The reason why there is a high potential difference is because that between the live wire and the electrician, there is a high charge flowing pass through the body which causes electric shock.
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The answer is that FRICTION PRODUCES HEAT.
