Answer:
The radius is 
Explanation:
From the question we are told that
The current is 
The magnetic field is 
Generally the magnetic field produced by a current carrying conductor is mathematically represented as

=> 
Here
is the permeability of free space with value 
=> 
=> 
The x-component of the normal force is equal to <u>1706.45 N.</u>
Why?
To solve the problem, and since there is no additional information, we can safely assume that the x-axis is parallalel to the hill surface and the y-axis is perpendicular to the x-axis. Knowing that, we can calculate the components of the normal force (or weight for this case), using the following formulas:

Now, using the given information, we have:

Calculating, we have:


Hence, we have that the x-component of the normal force is equal to <u>1706.45 N.</u>
Have a nice day!
Your answer is friction. Friction between to object slows the object down.
Answer:

Explanation:
Since the force applied is parallel to the displacement of the car, the work done on the car is simply given by:

where
F = 1210 N is the force applied on the car
d = 201 m is the displacement of the car
Substituting numbers into the equation, we find:
