Correct answer only ! i cannot retake this and i need all correct answers !

what elements have magnetic properties and will be attracted to magnets?

What is special about a dc circuit ?

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600