tamara sprays a garden hose at her brother who is 20 feet off the ground in a tree. how would the speed of the water as it comes from the faucet compare to the speed of the water as it hits her brother? explain.

b.

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snell's law

refractve index = sin incidence / sin refraction

where is the

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.