Answer:
1.065 km
Explanation:
The horizontal and vertical component of the canon ball when it's fired is
If we ignore air resistance, then gravitational acceleration g = -9.8m/s2 is the only thing that affects the vertical motion of the cannon ball. We can use the following equation to calculate the time it stays on air after it traveling h = -3.5m (down below the firing point) vertically
t = -0.07 or t = 9.64
Since t can only be positive we will pick t = 9.64
This is also the time it takes for the cannon ball to travel horizontally at the rate of 110.46 m/s
or 1.065 km
I believe these are the answers
#1- D
#3-B
#4- D
#5- D
#6-A
#7-B
I was able to get everything except #3
I hope this helps though :)
Answer: A north pole and a south pole
Explanation: All magnets no matter how big or small they are will always have poles. All magnets have two regions of magnetic strength where they are the strongest. Even if I cut a magnet in half, it would still have poles.
It's important to understand that there like poles repel each other and opposites attract.
Answer:
the object is no longer in equilibrium .