Jim takes 45 seconds to walk 180 m north to a store . what is james velocity in meters per second?

4 m/s NORTH

Explanation:

velocity = speed+direction

speed= distance/time

speed= 180m north/45s

180/45=4

4 m/s NORTH

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

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.