Solar cells are classified into first, second and third generation cells. The first generation cells—also called conventional, traditional or wafer-based cells—are made of crystalline silicon<span>, the commercially predominant PV technology, that includes materials such as </span>polysilicon <span>and mono crystalline </span>silicon<span>.</span>
Gram formula mass means the <span> mass of one moles of the compound
so </span> The mass of 1.0 moles of this compound is <span>48g</span>
<span>so i conclude option 3 is correct
hope it helps</span>
First discovery - Herto, Ethopia. 160,000 years ago - 40,000 years earlier than the previous oldest remains homo sapiens.
First let's convert everything into SI units.
The length of the blade is 3 inches. Keeping in mind that 1 inc=0.025 m, we have

The angular speed is 600 revolutions per minute. Keeping in mind that

and

, the angular speed becomes

And so, the linear velocity of the edge of the blade is equal to