please help **Questions:**1. Define the energy and name three of its forms. ................................................................................................................ ................................................................................................................2. What is the difference between conservative and non-conservative force? Give an example of each force. ................................................................................................................ ................................................................................................................ ................................................................................................................3. Write down the principle of conservation of mechanical energy. ................................................................................................................ ................................................................................................................**4.** A single frictionless roller-coaster car of mass \( m = 750 \, \text{kg} \) tops the first hill with speed \( v = 15 \, \text{m/s} \) at height \( h = 40 \, \text{m} \) as shown: - **i.** Find the speed of the car at B and C. ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ - **ii.** If mass \( m \) were doubled, would the speed at B increase, decrease, or remain the same? ............................................................................................................ ............................................................................................................**5.** Conclusions: ................................................................................................................ ................................................................................................................**Diagram Explanation:**The diagram depicts a roller-coaster track with three points labeled: First hill, A, B, and C. The path of the car is indicated by a continuous path showing its movement, starting from the First hill, passing through A, descending towards B, and then ascending towards C. The car's speed and position at specific points are to be analyzed based on the conservation of energy.

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1- Define the energy and name three of its forms.

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)...

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