You See Lightning Flash Followed 8

question 15

Multiple Choice

You see lightning flash followed 8.2 seconds later by the sound of thunder. The ambient air temperature is 12^°C. The speed of sound in air at 20^°C is 343 m/s. Approximately how far are you from the lightning?

• A) 2.77 km
• B) 2.74 km
• C) 2.18 km
• D) 1.69 km

---

Definitions:

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Replicable Results

Outcomes of experimental studies or research that can be consistently reproduced under the same conditions.

Procedures

A series of actions or steps taken in order to achieve a particular end, often in a scientific or systematic manner.

Informed Consent

A process ensuring that a person fully understands the risks, benefits, and alternatives of a procedure or participation in research, voluntarily agreeing to it.