Answer:
12.56 A.
Explanation:
The magnetic field of a conductor carrying current is give as
H = I/2πr ............................... Equation 1
Where H = Magnetic Field, I = current, r = distance, and π = pie
Making I the subject of the equation,
I = 2πrH............... Equation 2
Given: H = 1 T, r = 2 m.
Constant: π = 3.14
Substitute into equation 2
I = 2×3.14×2×1
I = 12.56 A.
Hence, the magnetic field = 12.56 A.
Answer:
The radius of a chamber is 2.36 meters.
Explanation:
Given that,
The outer wall moves at a speed of 2.72 m/s.
Mass of the person, m = 75.1 kg
The person feels a force of 235 N force pressing against his back. The force acting on the person is centripetal force. It is given by the below formula :

r is the radius of a chamber


r = 2.36 meters
So, the radius of a chamber is 2.36 meters. Hence, this is the required solution.
Mainly composed of Mineral calcite
Foolish, ambiguous question, with no correct answer, but at a wild guess, it MIGHT wobble about it own axis????
Complete Question
The complete question is shown on the first uploaded image
Answer:
a
b

c

Explanation:
Considering the first question
From the question we are told that
The force produced is 
The duration of the punch is 
Generally the impulse delivered is mathematically represented as

=> 
=>
Considering the second question
The approaching velocity of the ball is 
The leaving velocity of the ball is 
The mass of the ball is 
Generally the magnitude of the impulse delivered is mathematically represented as

=> ![I_1 = [0.145 * 45] - [0.145 * -53]](https://tex.z-dn.net/?f=I_1%20%3D%20%20%5B0.145%20%2A%20%2045%5D%20%20-%20%5B0.145%20%2A%20-53%5D)
=> 
Considering the third question
The duration of the impact of the bat is 
Generally the average force exerted by the bat is mathematically represented as

=> 
=> 