A heavy ball is suspended as shown.A quick jerk on the lower string will break that string but a slow pull on the lower string will break the upper string.The first result occurs because: 
Definitions:
Patents
Legal documents granting exclusive rights to inventors for their creations, preventing others from making, using, or selling the invention for a certain period of time.
Marginal Revenue
The supplementary income produced through the sale of one extra product or service unit.
Total Revenue
The overall earnings from sales of goods or services prior to any expense deductions.
Demand Curve
A visual chart that illustrates the connection between a product's price and the amount consumers are willing to buy.
Q2: A gram is:<br>A)10<sup>-6</sup> kg<br>B)10<sup>-3</sup> kg<br>C)1 kg<br>D)10<sup>3</sup> kg<br>E)10<sup>6</sup>
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