Conservation of Energy
... force is CONSERVATIVE if the work it does on an object between 2 points is independent of the path the object takes between the 2 points. (The work done depends only on the initial and final positions.) (example: Potential Energy) PE = mgy W c = -(PEf - Pei) ...
... force is CONSERVATIVE if the work it does on an object between 2 points is independent of the path the object takes between the 2 points. (The work done depends only on the initial and final positions.) (example: Potential Energy) PE = mgy W c = -(PEf - Pei) ...
07._ConservationOfEnergy
... If it takes the same amount of work to push a trunk across a rough floor as it does to lift a weight to the same distance straight upward. How do the amounts of work compare if the trunk & weight are moved along curved paths between the same starting & end points? ...
... If it takes the same amount of work to push a trunk across a rough floor as it does to lift a weight to the same distance straight upward. How do the amounts of work compare if the trunk & weight are moved along curved paths between the same starting & end points? ...
Document
... (2) Energy ratio of the ring between He+ and H+ = 1~10. (3) Some events show energy-time dispersion, indicating the drift. (4) The time scale of the development ~ 1 h. (5) Pitch angle ~ 90° for also > 30 eV. (6) Observation probability at 4~4.5 RE is ~ 40-45% in noon and dusk sectors and about 20-25 ...
... (2) Energy ratio of the ring between He+ and H+ = 1~10. (3) Some events show energy-time dispersion, indicating the drift. (4) The time scale of the development ~ 1 h. (5) Pitch angle ~ 90° for also > 30 eV. (6) Observation probability at 4~4.5 RE is ~ 40-45% in noon and dusk sectors and about 20-25 ...
Work and Energy
... Work of a force: L = F� · �s = F s cos θ = F � s = [N m] = [J] = [Joule] W = work done by a constant force F� to move a body by a displacement �s. θ = angle between the vectors F� and �s (F � is the component of F� parallel to �s). � (�r) = Fx (�r)î + Fy (�r)ĵ + Notice: For a non constance force F ...
... Work of a force: L = F� · �s = F s cos θ = F � s = [N m] = [J] = [Joule] W = work done by a constant force F� to move a body by a displacement �s. θ = angle between the vectors F� and �s (F � is the component of F� parallel to �s). � (�r) = Fx (�r)î + Fy (�r)ĵ + Notice: For a non constance force F ...
COURSE EXPECTATIONS COURSE CODE: PHYS
... CALENDAR COURSE DESCRIPTION: This course, specializing to students in Bachelor of Science, Bachelor of Science and Technology, Bachelor of General and Liberal Science programs, introduces fundamental concepts and physical laws in classical mechanics and their applications in modern science and techn ...
... CALENDAR COURSE DESCRIPTION: This course, specializing to students in Bachelor of Science, Bachelor of Science and Technology, Bachelor of General and Liberal Science programs, introduces fundamental concepts and physical laws in classical mechanics and their applications in modern science and techn ...
PHY1 Review for Exam 6 Topics 1. Work 2. Energy a. Potential
... meters above the surface of the water in a pool. When she is 1.00 meter above the water, what are her gravitational potential energy and kinetic energy with respect to the water’s surface? (1) PE = 1620 J and KE = 0 J (2) PE = 1080 J and KE = 540 J (3) PE = 810 J and KE = 810 J (4) PE = 540 J and KE ...
... meters above the surface of the water in a pool. When she is 1.00 meter above the water, what are her gravitational potential energy and kinetic energy with respect to the water’s surface? (1) PE = 1620 J and KE = 0 J (2) PE = 1080 J and KE = 540 J (3) PE = 810 J and KE = 810 J (4) PE = 540 J and KE ...
Gravitational Potential Energy Kinetic Energy
... g = gravitational acceleration in m⋅s-2 on that planet (9,8 m⋅s-2 on the earth) and h = height above the reference point (usually the ground). For an object falling freely (vi = 0 and a = g = 9,8 m⋅s-2, near the earth’s surface). ∆y = vi ∆t + ½ a ∆t2 = ½ g ∆t2, therefore ∆y α ∆t2. Furthermore, with ...
... g = gravitational acceleration in m⋅s-2 on that planet (9,8 m⋅s-2 on the earth) and h = height above the reference point (usually the ground). For an object falling freely (vi = 0 and a = g = 9,8 m⋅s-2, near the earth’s surface). ∆y = vi ∆t + ½ a ∆t2 = ½ g ∆t2, therefore ∆y α ∆t2. Furthermore, with ...
Practice Problems
... d. depends on the masses of the object 5. A person swings on a pendulum. What is the correct explanation for the height getting slightly smaller and smaller during each swing? a. You keep turning potential energy into kinetic energy in each successive swing thereby losing height each time b. Gravity ...
... d. depends on the masses of the object 5. A person swings on a pendulum. What is the correct explanation for the height getting slightly smaller and smaller during each swing? a. You keep turning potential energy into kinetic energy in each successive swing thereby losing height each time b. Gravity ...
Online Self-Assessment Quiz – Work and Energy
... 5. The book says the work = change in kinetic energy. Let’s say you do work to raise the book higher. Write a few sentences about how the work you do might change the kinetic energy of the book and about how the work you do might change the potential energy of the book. Think about whether you agree ...
... 5. The book says the work = change in kinetic energy. Let’s say you do work to raise the book higher. Write a few sentences about how the work you do might change the kinetic energy of the book and about how the work you do might change the potential energy of the book. Think about whether you agree ...
Lecture 18 More on Diffusion and Kinetic Energy
... Estimating D from Diffusion from a Sharp Boundary Zx ...
... Estimating D from Diffusion from a Sharp Boundary Zx ...
Energy Mom Plan (red)
... Note, this is not the potential energy but rather the change in gravitational potential energy. There is therefore a need for a reference position which we assign as zero potential energy (even though it is surely non-zero). Also, PE is path independant (it doesn't matter which path an object takes ...
... Note, this is not the potential energy but rather the change in gravitational potential energy. There is therefore a need for a reference position which we assign as zero potential energy (even though it is surely non-zero). Also, PE is path independant (it doesn't matter which path an object takes ...
Atomic Physics
... By classical theories, all accelerating charged particles will emit radiation ( energy ). If Rutherford’s model is correct, the accelerating electrons will lose energy continuously, then they will be adhered to the nucleus and all atoms will finally be collapsed! ...
... By classical theories, all accelerating charged particles will emit radiation ( energy ). If Rutherford’s model is correct, the accelerating electrons will lose energy continuously, then they will be adhered to the nucleus and all atoms will finally be collapsed! ...
