Seville has the only inland port in Spain, located 80 km (50 mi) from the mouth of the Guadalquivir River. This harbour complex offers access to the Atlantic and the Mediterranean, and allows trade in goods between the south of Spain (Andalusia, Extremadura) and Europe, the Middle East and North Africa.
Centripetal force. The centripetal force is the force that causes an object to move in a circle, acting towards the centre of the circle. In the case of a satellite the centripetal force is gravity, in the case of an object at the end of a rope, the centripetal force is the tension of the rope.
According to the equation F net =(mâ¢v 2) / R, force and speed 2 are directly proportional. So 2X the speed means 4X the force (that's from 2 2). 4. Determine the centripetal force acting upon a 40-kg child who makes 10 revolutions around the Cliffhanger in 29.3 seconds. The radius of the barrel is 2.90 meters.