The mass of an electron is A) equal to the mass of a proton B) less than the mass of a neutron C) greater than the mass of a pro
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Answer:
<em>The distance covered by comet is </em>
Explanation:
Speed is defined as the rate of change of distance with time. It is given by the equation speed=
Thus distance=
In this problem it is given that speed of comet=
time travelled by the comet= 4 hours
Thus distance=
=
=