Answer:
a

b

Explanation:
From the question we are told that
The distance of separation is 
The frequency is 
The distance of the receiver from the antennas is 
The intensity measured is 
The change in position of the receiver is by 
Gnerally the phase difference is mathematically represented as

Here
is the wavelength which is mathematically represented as

Here c is the speed of light with value 
=> 
=> 
=> 
So



Generally the intensity measured by the receiver is
![I = I_o cos^2 [\frac{\Phi}{2} ]](https://tex.z-dn.net/?f=I%20%20%20%3D%20I_o%20%20cos%5E2%20%5B%5Cfrac%7B%5CPhi%7D%7B2%7D%20%5D)
=> ![I = I_o [cos [\frac{4.524}{2} ]]^2](https://tex.z-dn.net/?f=I%20%20%20%3D%20I_o%20%20%5Bcos%20%5B%5Cfrac%7B4.524%7D%7B2%7D%20%5D%5D%5E2)
=> ![I = I_o [cos [ 2.262]]^2](https://tex.z-dn.net/?f=I%20%20%20%3D%20I_o%20%20%5Bcos%20%5B%202.262%5D%5D%5E2)
=> 
Answer:
The force of static friction is 17.15 N
Explanation:
It is given that,
Mass of the bucket, m = 5 kg
The coefficient of static friction is, 
We need to find the maximum force of static friction. It is given by :


F = 17.15 N
So, the force of static friction is 17.15 N. Hence, this is the required solution.
Answer:
Potential energy.
Explanation:
Batteries are a form of chemical energy which is stored in the bonds of molecules contained within the battery acid, batteries are a form of potential energy making chemical potential energy too.
The wavelength formula is λ = v/f.
100/200= .5
The wavelength is .5