What is the magnitude of an object’s average velocity if the object moves from a point with coordinates x= 2.0 m, y= -3.0 m to a point with coordinates x= 5.0 m, y= -9.0 m in a time interval of 2.4 s?

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.