Answer:
The target was higher than the cannon
Explanation:
Given that a cannon ball is launched with initial speed 56 m/s, and hits a target at speed 35 m/s.
The initial velocity must be 56 m/s, while the final velocity will be 35 m/s.
When an object is thrown upward with an initial velocity, the object continues to move upwards with decreasing in magnitude of velocity till it reaches the maximum height where the final velocity will be equal to zero.
In this question, since the final velocity is less than the initial velocity, we can conclude that the target is higher.
Therefore, the target was higher than the cannon.
I think it's speed. Distance/time=speed
Answer:
Resistance will become 4 times of first wire resistance.
Explanation:
At the temperature of both the the tungsten wire is same so we can apply ohm's law
Let the length of first wire is 
and cross sectional area is 
Resistance of first wire 
......1
Now length of second wire is twice the length of first wire
and cross sectional area 
.......2
Resistance of wire 2 
........2
Dividing equation 1 by equation 1
Therefore resistance will become 4 times.
