Question

If an earthquake wave having a wavelength of 13 km causes the ground to vibrate 10 times (1 point) each minute, what is the speed of the wave? 1.2 km/s 2.2 km/s
220 m/s
22 m/s

Answer 1

The correct answer is 2.2 km/s

Earthquake is a natural disaster when the tectonic plates of the Earth starts vibrating. The speed of earthquake is the velocity by which the waves will vibrate the Earth.

Given,

Wavelength λ= 13 km

Frequency f = 10 times/min

it vibrates 10 times each minute

so the frequency is defined by the number of vibrations per second

f = 10 per minute

f = 10/60

now the speed of wave is defined as

v = λ * f

v = 13 * (1/6)

v = 2.2 km/s

Therefore the speed at which the wave of earthquake having wavelength 13 km causes the ground to vibrate is 2.2 km/s.

To learn more about speed, refer: brainly.com/question/22244502

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