# Question #8aaf2

Dec 11, 2017

I make it about 2.86 meters

#### Explanation:

105 MHz means that 105 Million wave crests pass a given point every second. These waves are travelling at the speed of light, 300,000 km/sec.

So, 105 Million wave crests = 300,000 km.

Divide both sides by 105 million:

$\frac{105 \cdot {10}^{6}}{105 \cdot {10}^{6}} = \frac{3 \cdot {10}^{5} k m}{105 \cdot {10}^{6}}$

$= 2.86 \cdot {10}^{- 3} k m$

...or 2.86 meters (rounding)

GOOD LUCK