10 are left.
A third of 15 is, 15 divided by 3 = 5
subtract 5 (the number of crows shot) from 15 = 10
5
then...
If you mean a chain link fence or picket fence, sound will go right through it. If you mean a fence you can't see through, one standing 6 or so feet high with no gaps, it can reduce the sound, but not prevent it from escaping entirely.
Fence
Depends on what type of electric fence you're talking about:If it's pulsing then you'd have to do it at the right time.If it's like a dog electric fence you'd have to have the collar on it.But either way, I'm pretty sure whatever is put into the electric fence would have to be conductive; as bodies are (animals and humans alike).Also depends on what kind of stick:Wooden stick from a tree: not conductiveMetal stick or bar: yes conductive (depending on the type of metal)
Chemical potential to sound energy.
None of the crows will be left.They all will have flown away.
then...
3 check the fence posts...
Fifteen feet from a fire hydrant is fifteen feet from a fire hydrant.. Just the same as fifteen feet from the fence..
The electric fence!
There are eight crows sitting on the telephone wire.
You find it caught on the fence of the farmer's brother.
nineteen
The answer is "none", all birds will fly away
the sides of the fence are parallel to the rows of crops.
One is because the farmer needs to allow the grass to regain control and grow taller while the cattle were moved to the already regained pastures. Another might be because a fence was down and the farmer didnt want the cows to get out of the fence. There could have been a sick cow and the farmer didnt want the hole herd to get the disease These are some of my reasons
Yes, this is in the realm of possibility and in fact happens. It will not be a dangerously high voltage induced into the fence but you will be able to feel it. Proper grounding of the fence will eliminate the condition.