Find the ratio of the orbital speeds of two satellites of the earth if the satellites are at height 6400 km and 19200 km.
(Radius of the earth = 6400 km).

Explanation

To find the ratio of the orbital speeds of two satellites orbiting the Earth at different heights, we can follow these steps:

### Step 1: Understand the problem
We have two satellites at heights:
- \( h_1 = 6400 \, \text{km} \)
- \( h_2 = 19200 \, \text{km} \)

The radius of the Earth is given as:
...