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

Answer:

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,

$\Delta t = \frac{d}{v} = \frac{9,5 \times 1,5 \times 10^{11}}{3,0 \times 10^8} = 4 750 \Longleftrightarrow \Delta t \approx 80 \text{ m}$