The Speed of Sound Through the Ground Is About 6

question 74

Multiple Choice

The speed of sound through the ground is about 6.0 km/s while the speed of sound in air is 343 m/s.A very powerful explosion occurs some distance away and you feel the ground vibrate 60 seconds before you hear the sound of the explosion.How far away is the explosion?

• A)20 km
• B)22 km
• C)25 km
• D)27 km
• E)30 km

---

Definitions:

Johari Window

A model used to improve understanding between individuals within a team or group, highlighting self-awareness and mutual understanding by dividing personal awareness into four areas: open, hidden, blind, and unknown.

Self-description

The way an individual describes or perceives themselves, often reflecting their beliefs, attitudes, and values.

Discussion

The act of talking about something with another person or a group in order to exchange ideas or opinions.

Openness

The willingness to consider new ideas, experiences, and information, often characterized as a dimension of personality.