Answer:
advantage : 1) produce no polluting gases .
2)doesn't contribute to global warming .
disadvantage: 1)waste is radioactive and safe disposal is very difficult and expensive.
2)local thermal pollution from east water affects marine life
Answer:
The mass is 
Explanation:
From the question we are told that
The speed of the charge is 
The magnetic field is 
The radius is 
The value of the charge is 
The centripetal acting on the charge moving in the circular orbit is mathematically represented as

Now this centripetal force is due to the force exerted on the charge by the magnetic field on the charge which is mathematically represented as

At the maximum of this magnetic force 
So


Now given that it is this magnetic force that is causing the circular motion we have that

=> 
=> 
substituting values


Answer:
Vr = 3.24m/s
The boat is going 3.24m/s relative to the bank of the river.
Explanation:
The relative speed of the boat to the bank Vr is the resultant of speed of boat relative to the water Vb and the speed of boat as a result of the water current or wind Vw
Vr = √(Vb^2 + Vw^2) .....1
Given;
Vb = 2.6m/s
Vw = distance downstream/time = 690m/355s
Vw = 1.94m/s
From equation 1 above; substituting the values
Vr = √(2.6^2 + 1.94^2)
Vr = 3.24m/s
The boat is going 3.24m/s relative to the bank of the river.
C, planets orbit around the sun because of gravity
Distance traveled(in a certain direction) and time
Velocity is all about direction traveled in comparison to speed which is just distance with out direction.
Hope this helps you