There is no significance to the other focus. There's not necessarily anything there.
When plane is going towards Halifax the speed of wind is in the direction of fly
so overall the net speed of the plane will increase
while when he is on the way back the air is opposite to flight so net speed will decrease
now the total time of the journey is 13 hours
out of this 2 hours he spent in mathematics talk
so total time of the fly is 13 - 2 = 11 hours
now we have formula to find the time to travel to Halinex
time taken to reach back
now we have total time
here d= 3000 miles
solving above quadratic equation we will have
so speed of plane will be 550 mph
Answer:
The frequency of the wave is 5.0Hz
Explanation:
The frequency of a wave is the number of oscillations or revolutions made in a second.
Its mainly about how much gunpowder is used in the shell. Thats all I got. XD