Air Is Being Blown into a Spherical Balloon at a Rate

question 52

Short Answer

Air is being blown into a spherical balloon at a rate of 70 cm³ per second.At what rate is the surface area of the balloon increasing when the radius is 10 cm? Round to 2 decimal places, and do not include units.

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Definitions:

Net Present Value (NPV)

A valuation method used to assess the profitability of an investment by calculating the present value of expected future cash flows minus the initial investment cost.

Externality

A consequence of an industrial or commercial activity that affects other parties without this being reflected in market prices, often considered as either positive or negative.

Capital Cost Allowance (CCA)

A tax deduction available in Canada for depreciable property that can be used to reduce taxable income.

Straight-line Depreciation

A method of allocating the cost of a tangible asset over its useful life in equal annual amounts.