You have a smoke detector that you are mounting on a 60 degree from horizontal sloped ceiling (that is one wickedly steep ceiling!). The smoke detector has a mass of 1.5 kg (pretty beefy!). To help you mount the detector you have the Acme patented compression spring smoke detector holder. It consists of a pole and a spring. The spring has a force constant of 5N/cm. The coefficient of static friction between the detector and the ceiling is 0.45. What is the maximum amount you can compress the spring and still hold the detector in place when you located holding the compression spring smoke detector holder vertically under the smoke detector

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.

just took the test its not "d"