Answer:
Part b

Explanation:
Part a)
Let the radius of the coil is R and magnetic field on its axis is given as

now we know that two coils are identical and we need to find magnetic field between two coils
so we will have net magnetic field given as

Now we know that magnetic field is maximum at position

so we will have


so it will be at mid point of two coils
Part b)
Now we know that

so we will have

now magnetic field is given as

put z = 0.5 R

All matter is made of particles; these can be single atoms or atoms chemically joined to make molecules. Using this fact, matter can be classified into three broad groups: elements, compounds and mixtures. In an element, all the atoms are of the same type. If more than one type of atom is chemically joined, then a compound has been formed. If more than one type of atom or molecule is contained in the same substance, and the particles aren't chemically joined, this is a mixture.
Answer:36
Explanation:use a calculator?
Answer:
757.14 (2.d.p.)
Explanation:
CHECK THE IMAGE!! DEATHNOTE AT YOUR SERVICE. 12th Year Physics Kind Of Sucks!
Answer:
Kr = 0.7618K
Explanation:
Suppose that the object's velocity is V, then his kinetic energy is:
K = 
K = 
K = 8
The rotational kinetic energy is
Kr = 
where I: The moment of inertia
ω: angular velocity
Kr =
Kr = 0.295
How the movement is without slipping, then
ω = 
ω = 
Thus
Kr = 
Kr = 6.095
8
----> 1
6.095
----->?
Kr = 0.7618K