Physicists at CERN study the conditions present during the big bang by using machines to do what? A. super heat the air to produce new elements
B. super cool the air to create solid gases like hydrogen and helium
C. smash atoms into one another and study the results
D. separate atoms from their electrons

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