B A and B are two spheres which carry electric charges. AB
Initially, A has a charge of +2 units and B has a charge of – 1 unit.
What is the direction of the force on (i) A (ii) B? [2]
If 2 units of positive charge are added to both A and B, what will be the direction of the force on (i) A and (ii) B?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

What is the scientific definition of energy that relates to work

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.