In reality by improvisation an A. C motor and use physics theory to describe operation ​

Will you chech and finish these for me, because i am stumped with them.

What are the applications of electromagnetic waves

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer