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PHYS 1A Lecture Notes - Lecture 12: Chemical Energy

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coffeecamel142
21 Nov 2017
School
UCSD
Department
Physics
Course
PHYS 1A
Professor
Mark Paddock

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Document Summary

Block a has a mass of 1. 00 kg, block b has a mass of 2. 00 kg and the angle of the incline is 30 degrees. If the velocity of block a is 1. 5 m/s when block b has fallen 25 cm, what is the friction force? week 5 page 1. A scalar measure of motion or potential for motion. Particularly useful for complex force laws (when force is not constant,, e. g. , gravitational force) A system is a small portion of the universe. We will ignore the details of the rest of the universe. A critical skill is to identify the system. Work done by a constant force week 5 page 2. Work is largest when f and x are aligned. Can add energy to a system or remove energy from a system. A person slowly lifts the box m at vertical height h.

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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Related Questions

In the figure below, the pulley has negligible mass and is frictionless. The coefficient of static friction, Ā ', between block A and the incline in 0.430. Block A has a mass of 1.00 kg, block B has a mass of 2.00 kg and the angle of the incline is 30.0 degrees.

(a)Draw a force diagram for block A.Ā 

(b) Draw a force diagram of block B.

In the figure below, the pulley has negligible mass and is frictionless. The coefficient of static friction between the block "A" and the incline is 0.250. Block "A" has a mass of 1 kg, block "B" has a mass of 2 kg and the angle of inclination is .Ā 

  1. What are the forces acting on block "A"?
  2. What are the forces acting on block "B"?
  3. Is this situation is equilibrium or are they moving? If they are moving then in which direction they are moving?

Two blocks,Ā AĀ andĀ BĀ (with mass 50.0 kg and 1.00 Ɨ 102Ā kg, respectively), are connected by a string, as shown in Figure P5.86. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between blockĀ AĀ and the incline isĀ Ī¼kĀ = 0.250. Determine the change in the kinetic energy of blockĀ AĀ as it moves fromĀ Chapter 5, Problem 86AP, Two blocks, A and B (with mass 50.0 kg and 1.00 102 kg, respectively), are connected by a string, , example 1Ā toĀ Chapter 5, Problem 86AP, Two blocks, A and B (with mass 50.0 kg and 1.00 102 kg, respectively), are connected by a string, , example 2, a distance of 20.0 m up the incline (and blockĀ BĀ drops downward a distance of 20.0 m) if the system starts from rest.