the football player has speed
no it can't do this why because I think that it is water and it can not go any where.
Answer:

Explanation:
Given that,
Frequency of a radio antenna is 1 MHz
Power, P = 21 kW
We need to find the the waves intensity 25 km from the antenna
. The object emits intenisty evenly in all direction. It can be given by :

So, the wave intensity 25 km from the antenna is
.
Answer:42 cm 3 cubic unit
Explanation: