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Tectonic plates are large segments of the earth's crust that move slowly. Suppose one such plate has an average speed of 5.5 cm per year.
(a) What distance does it move in 51 seconds at this speed?
m
(b) What is its speed in miles per million years?
mi/My


Sagot :

The distance and speed are as follows:

  • Distance = 8.89 * 10⁻⁶ cm
  • Speed = 34.2 miles per million years.

What is speed of a body?

Speed of a body is the ratio of the distance covered by a body and the time it takes to cover that distance,

  • Speed = distance/time

The number of seconds in a year = 365.25 * 24 * 3600 = 31557600 second

a) Distance covered in 51 seconds = 5.5/31557600 * 51

Distance = 8.89 * 10⁻⁶ cm

b) 5.5 cm = 3.4175 * 10⁻⁵ miles

Sped in miles per million years = 3.42 * 10⁻⁵ miles/1 * 10⁻⁶ million years

Speed = 34.2 miles per million years.

Learn more about speed and distance at: https://brainly.com/question/26046491

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