Identify energy transfers and Communication (_ I 3) transformations Apply concepts of energy, transfers and Application ( _ 3' 1o) transformations to solve problems using the law of conservation of energy 1. A roller coaster car starts from rest from a height of 54 m and ends moving forwards along the grou nd, as shown in the image. Assume that this is an ideal roller coaster and that there is no friction between the car and track and no air resistance. a. Identify all the energy transfers and transformations for the roller coaster from start to end. b. What is the maximum speed of the roller coaster? c. The minimum speed required to clear the leap safely is 13 mfs. What is the height of the loop? 2. A pendulum is raised to a height of DAD m and released from rest. A short time later, the pendulum arrives at its 'equilibrium position' (Le. its lowest position}. as shown in the diagram. Neglect all friction and air resistance. a. Identify all the energyr transfers and transformations for the pendulum from release to equilibrium position. b. What is the speed of the pendulum at its equilibrium position? c. At what height (above the equilibrium position] will the pendulum have a speed of 2.1 ms? Criteria Apply knowledge of concepts and Application (_.-' 1 0) relationships between energy; work, power to plan to solve problems 3. A 65kg student climbs a 40.0 m ight of stairs in 15.0 s. Calculate the a. gravitational potential energy at the top of the stairs. b. power ofthe climb. Submit here or 4. An elevator motor provides 45.0 kW of power while lifting a 2000-kg elevator 35.0 m. If the elevator contains six passengers of the same mass and it takes 20.0 s to accomplish this task, determine the mass of each passenger. 1b. How could wind power be used to generate electricity? Explain. Your answer 1c. Would its electrical output be consistent? Explain. Your answer 2a. Could a waterfall be used to generate electricity? Yes O No 2b. How could a waterfall be used to generate electricity? Explain. Your answer 2c. Would its electrical output be consistent? Explain. Your answer 3a. Could steam be used to generate electricity? O Yes3b. How could steam be used to generate electricity? Explain. Your answer 3c. Would its electrical output be consistent? Explain. Your