The roller coaster is at the top of a 72m hill and has a mass of 98.57kg. the ball has energy calculate it

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

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?

Adiagram show how a converging lens can produce a real image and virtual image