How Far Away Is a Lightning Bolt If It Takes

question 1

Multiple Choice

How far away is a lightning bolt if it takes 10 s for the sound of the associated thunder to reach the observer?

• A) 1 mile
• B) 2 miles
• C) 5 miles
• D) 10 miles
• E) ​3.4 miles

---

Definitions:

Salvage Value

The conjectured remain value of an asset at the end of its productive life.

Straight-Line Method

A technique for determining depreciation or amortization by equally distributing an asset's cost throughout its lifespan.

Salvage Value

An asset’s expected trade-in value at the point it concludes productive life.

Depreciation

Spreading out the cost of a tangible asset systematically over its life of service.