Answer:
Part a)
change in potential energy is given as

Part B)
angular speed of the rod is given as

Part c)
Linear speed of the end of the rod is given as

Part d)
when a particle falls from rest to distance d = 1 m

Explanation:
Part A)
As we know that the gravitational potential energy change is given as



Part B)
As we know that change in gravitational energy is equal to gain in kinetic energy
so we have




Part c)
Linear speed of the end of the rod is given as


Part d)
when a particle falls from rest to distance d = 1 m
so we will have



Here, we are given with:

(a) So now, we can thus obtain



Now, finding 


Now, finding k


Thus, expression for the electric field is:

(b) Now, here


Thus, expression for the magnetic field:

(c) The electromagnetic wave propagates along Z-axis
Answer:
There are three types of material as per the condition of charge flow
1) Conductor
2) Insulator
3) Semiconductor
1) Conductors
As we know that conductors are those which offer very small resistance to the flow of charge
Resistivity of the conductors are very small
2) Insulators
These type of materials offer large resistance to the flow of charges and it will not pass the current through it
So resistivity of the insulators are large as compared to conductors
A gas as 30.0 Ml because pile of 1.4 add 1 that equals. To 1.5 and remove 10 so thebpresssure is 1399.93