Question

The Earth and Saturn are 9.5 AU apart. How many minutes does it take for us to send a radio signal to communicate with the Cassini satellite

Answer 1

Bonjour,

QUESTION)

AU is the astronomical unit referring to the distance between the Earth and the Sun 1 AU is equal to 1,50 × 10¹¹ m.

It therefore comes,

`\Delta t = (d)/(v) = (9,5 * 1,5 * 10^(11))/(3,0 * 10^8) = 4 750 \Longleftrightarrow \Delta t \approx 80 \text{ m}`