Does it take 18 months for twins to be born, and 27 months for triplets, and so on?

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car