We are given with the data that the angle of velocity is above the negative axis. hence, the angle lies in the second quadrant with negative x axis and positive y axis. In this case, the x component is -12 cos 60 equal to -6 m/s while the y-component is 12 sin 60 equal to 6 sqrt of 3 m/s.
That statement is as false as false can be.
Roughly 78% of the Earth's surface is covered by water,
and Hydrogen is a major component of water.
On the surface of the Earth, you really have to try hard
to be far away from a cheap source of Hydrogen.
We know that when you heat up calcium sulfate all the water has evaporated from it. That means that the mass of water that was initially in the sulfate is the difference in mass of the sulfate before and after the heating.
In order to <span>get a percentage by mass we simply divide this number by the initial amount of sulfate:
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Answer:Gases do not conduct heat as well as liquids and are therefore good insulators. Gases consist of widely spread out particles, and it takes contact to conduct heat. ... They are insulators if they are not ionized and there are no free charged particles there that can carry electric current.
Explanation:
