Answer:

Explanation:
Given that :
The radius of the circular loop = 4.0 m
Maximum Emf
= 5.0 V
The maximum rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies can be determined via the expression;
= 
= 
5.0 = 
5.0 = 


As per Newton's II law we know that

here we know that

so here we will have

so here if we need to increase the acceleration we need to increase the applied force while on increasing the mass or on increasing the friction force the acceleration will decrease.
So here correct answer will be
<em>A) force on the object.</em>
Answer:
The force is 
Explanation:
From the question we are told that
The diameter of the wire is 
The pressure is 
Generally the radius of the of the wire is

=>
=> 
The Area is evaluated as

=> 
=> 
Generally pressure is mathematically represented as

=> 
=> 
=> 