An Initially Installed Flywheel Can Store 10⁶ J of Kinetic

question 39

Multiple Choice

An initially installed flywheel can store 10⁶ J of kinetic energy when rotating at 300 rad/s.It is replaced by another flywheel of the same size but made of a stronger material.If its mass is the same as that of the original,and it is now capable of achieving a rotational speed of 395 rad/s,what maximum energy can be stored?

• A) 1.73E+6 J
• B) 1.92E+3 J
• C) 1.16E+5 J
• D) 1.00E+6 J

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Definitions:

Marginal Cost Curve

A graphical representation showing how the cost of producing one more unit of a good varies with the level of output.

Average Revenue

Total revenue from the sale of a product divided by the quantity of the product sold (demanded); equal to the price at which the product is sold when all units of the product are sold at the same price.

Average Cost

is the cost per unit of output, calculated by dividing total costs by the total quantity of output produced.

Patent

A legal document granted by the government, giving an inventor exclusive rights to use, make, and sell an invention for a certain period of time.