Answer:
average speed = total distance/total time
Answer:
The following is the relation between electric force and field

Explanation:
Electric force is the magnitude of electrostatic forces between two charges which is directly proportional to product of both charges and inversely proportional to the square of the distance between them.

Here k is the coulumb's constant.
Where as the electric field is the electric force per unit charge. It is the function of electric force. It is the vector quantity and its direction is taken radially inward or outward depending on the nature of charge.
Its equation is
Electric Field 
Electric Field units are in volts where as Electric force units are newtons.
Answer:
d. Direction and magnitude
Explanation:
The two components of a vector are its magnitude and direction.
Magnitude is the quantity of the substance
Direction is the path.
- Other quantities are called scalar quantities.
- Scalar quantities have only magnitude but no direction.
Examples of vector quantities are velocity, displacement, acceleration.
Answer:
disturbance I think not sure thou:)