Question

Tectonic plates are large segments of the Earth's crust that moves slowly. Suppose that one such plate has an average speed of 4.0 cm/per year. a.) what distance does it move in 1 second at this speed. b.) What is the speed per kilometer per million years

Answer 1

a.
`3.04* 10^(-8)m`

b. = 40 km/ million years

Step-by-step explanation:

The computation is shown below;

According to the question, Data provided in the question

Average speed = 4.0 cm / per year

Distance move in 1 second at this speed

Based on the above information

a. For distance move in 1 second is

As we know that

`d_1 = v_g * t\\\\ = 4\ cm * (1)/(100* 365.25* 3,600) * 1\s\\\\= 3.04* 10^(-8)m`

b. For speed per kilometer per million years is

`v_1 = 4* (10^6)/(10^5) \\\\`

= 40 km/ million years