If an earthquake is 121,000 times as intense as the minimum detected earthquake, what is its richter number?

the 121,000

Step-by-step explanation:

if it is times as intense as a minimum, it would be the richter one.

i think. i was never good in the earthqueck math section stuff. but im sure the 121,000 is the right one. :)

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.