Explain the difference between following terms:

a) schema and instance

b) physical and logical data independence

c) weak and a strong entity set

How should you set the ohms adjust control on a multitester of analog vom, for resistance measurements?

Which law requires employers to provide safe working environments for their employees? a. civil rights act b. fair labor standards act c. occupational safety and health act d. wagner act

What are procedures that keep a data base current