This is a 3-phase wye-delta for 240-volt service (210° displacement). View the right transformer: What is the short looped jumper between the middle secondary busses for? Hint: Both ends of the secondary windings are brought out of the can as bus connections.

As newton's first law states a object in motion stays in motion

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.

What about pink because im not too fond of red

C) the periods  of day and night would be fixed all year for anyone at the  equator