A. Does the magnet have to be touching the nail to lift the tack or paper clip? b. How close does it have to be? Experiment with different sized magnets.

c. Does the size of the magnetic field change with the size of the magnet?

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.

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