If the impact force to ensure an elastic collision is 1700 N, how much air drag force is needed to apply to each of the prototypes to decrease the net force to at least 1700 N? (Hint: Use Net Force)

Texture and composition are different because they are not the same aspect. texture has to do with feel and so on, where as composition is the chemical makeup which you cant touch like you can texture.

Amplify and switch electrical power and electronic signals

No because scientist are still changing there mines today so they are not correct to this day