Answers :
1. All points of a conductor are at the same potential. - True
2. Charges prefer to be uniformly distributed throughout the volume of a conductor. - False
3 The electric field inside the conducting material is always zero. -True
4.Just outside the surface of a conductor, the electric field is always zero. - False
The correct answer is b i believe
A valve is a flap of tissue that prevents blood from flowing back
Using the picture provided the forces are added together, because they are putting force on an object the same direction, thus the forces are added.
