Answer:
Initial velocity =
b) Height it reaches = 44.145 m
Explanation:
Using the first equation of motion we have

here
v is the final velocity
u is the initial velocity
a is the acceleration of the object
t is time
When the ball reaches it's highest point it's velocity will become 0 as it will travel no further
Also the acceleration in our case is acceleration due to gravity (
) as the ball moves in it's influence alone with '-' indicating downward direction
Thus applying the values we get

b)
By 3rd equation of motion we have

here s is the distance covered
Applying the value of u that we calculated we get

06758 m
Explanation:
it is correct because that is what
Answer:
the answer is A have a nice day hope I helped
Answer:
a) 
b) 
Explanation:
From the question we are told that:
Wire Length 
Resistance 
Force 
Power 
a)
Generally the equation for Power is mathematically given by

Therefore



b)
Generally the equation for Magnetic Field is mathematically given by


