3. For the spring shown below, derive the following: c. Equivalent spring constant d. Potential energy k₁ k₂ k3
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- Question 6 When a student stretches a spring, what is the flow of energy? a. Energy goes into the spring and into the student. X b. There is no change in the energy of the spring, only for the student. c. There is no change in the energy of the student, but there is a change for the spring. d. Envery leaves the spring and goes to the student. e. Energy goes into the spring from the student.9. If an object is released from the position A on the top of the hill. What will be its speed at the peak C. Assume the track is frictionless. AA h,- 50 m = 30 m BWork and energy
- A 3.59 kg ball is held at rest exactly 3.7 meters in the air. Assume their is no spring in this problem. A. How much gravitational potential energy does the ball currently have? Joules B. How much kinetic energy does the ball currently have? Joules C. How much total mechanical energy does the ball have currently? Joules The ball is than allowed to fall to the ground. As the ball falls It gravitational potential energy gets converted into Kinetic Energy. The moment before hits the ground all of its energy is in the form of kinetic energy. D. How much G.P.E does the ball have the moment before it hits the ground? Joules E. How much kinetic energy does the ball have the moment before it hits the ground? Joules F. what is the ball's speed the instant before it hits the ground? m/sA 2.75 kg mass is pressed against a horizontal spring (k = 325 N/m) on a frictionless surface. If the block is pulled 6.5 cm from its equilibrium position and then released, A. What is the potential energy stored in the spring? B.What is the speed of the block when its released