13. You learned in Science that Energy is conserved, that Potential Energy must balance Kinetic energy. Mathematically, that means: mgh = – nv², where mgh is Potential Energy 2 1 %3D and -mv² is Kinetic energy. Reminder that m is mass, g is the acceleration due to gravity, h is height and v is velocity. a) Balance this equation such that the sum of Potential and Kinetic Energy is zero (hint: gravity is negative). b) Solve this equation for v; again, you only need the Algebra you've learned! (hint: don't worry about the negative at the end!) Show your work!

13. You learned in Science that Energy is conserved, that Potential Energy must balance Kinetic energy. Mathematically, that means: mgh = – nv², where mgh is Potential Energy 2 1 %3D and -mv² is Kinetic energy. Reminder that m is mass, g is the acceleration due to gravity, h is height and v is velocity. a) Balance this equation such that the sum of Potential and Kinetic Energy is zero (hint: gravity is negative). b) Solve this equation for v; again, you only need the Algebra you've learned! (hint: don't worry about the negative at the end!) Show your work!

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

7. The work done by gravity in lowering a 3.0 [kg] box from an initial height to the ground is 15 [J]. What is the gravitational potential energy at its initial position if the potential energy at the ground is zero? A. zero B. -15.0 [J] C. +15.0 [J] D. +30.0 [J]
12. What is the potential energy of a 3kg ball that is on the ground? 13. A roller coaster is at the top of a 72m hill and weighs 966N. At the top of the hill the coaster car has - _energy. Calculate it. Onitsubis 14. What is the kinetic energy of a 3kg ball that is rolling 2m/s? bido no a 3nbor emm 1919b ferit nobbet owd ont.Et
3. A person stands on a hill that is 78m tall. If their gravitational potential energy is 40,000J, what is the person’s mass? 4. What is the mass of an object that creates 33,750J of energy by traveling at 30m/s?
Question help
I just need to know what is the Energy Conservation Equation.
3. Write an expression for the total energy of an object in a circular orbit. Write this in terms of the object's GPE.
1. What is the change in gravitational potential energy as the car moves from Point A to B at the bottom of the track?2. What is the Kinetic Energy at Point B? 3. What is the speed of the card at point B?
3 Stud, Bue Onine Fasncards os docs.google.com k #2 at a glance SEM II O prmat Tools Add-ons Help Last edit was 6 minutes ago Normal text Times New. 14 + BIUA I| 3 I 4 5 6 I II 7 Model ion: 1. A 7kg object is moving with a speed of 8m/s from a height of 2 m: a. Calculate the Kinetic Energy: 2 mv .5 x 10x 12= b. Calculate the gravitational PE: c. Calculate Mechanical Energy: !!!
Section 1: Fill in the blanks vwith either POTENTIAL or KINETIC to make the statements true 1. A bike moving down a hill has Lenergy. 2. A bike stopped at the top of a hill has energy. 8,8 3. An apple in a tree has energy. 4. An apple falling from a tree has energy. 5. A metal spring stretched out has energy. 6. A metal spring bouncing has energy. 7. If a light is on it has energy. 8. If a light is off it has energy. 9. A sleeping dog has Lenergy. 10. A dog jumping for a treat has energy.