You are carrying a stack of boxes across the room. when you come to a sudden stop, some of the boxes fall forward off of the top of the stack. which law of motion is it?

0.11 m/s and 0.28 m/s should be correct

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

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.