PH212 Chapter 10 Solutions
... E VALUATE : If the pulley were massless and the cylinder slid without rolling, and The rotation of the objects reduces the acceleration of the block. ...
... E VALUATE : If the pulley were massless and the cylinder slid without rolling, and The rotation of the objects reduces the acceleration of the block. ...
Discussion 1
... Again by superposition, U = U1 + U2 + U3 + U4. Since all the masses are the same, the only difference between the Ui’s is the distance from the mass Mi to the test mass m. For the two righthand masses, r1 = a/2. For the two left-hand masses, r22 = (a/2)2 + a2 = 5a2/4, and so r2 = 5a/2. U = –2 G M m ...
... Again by superposition, U = U1 + U2 + U3 + U4. Since all the masses are the same, the only difference between the Ui’s is the distance from the mass Mi to the test mass m. For the two righthand masses, r1 = a/2. For the two left-hand masses, r22 = (a/2)2 + a2 = 5a2/4, and so r2 = 5a/2. U = –2 G M m ...
Forms of Energy Resource Packet
... the other hand, a brick held in your hand has stored mechanical energy that would turn into motion if you dropped it. So, mechanical energy is both potential and kinetic energy. Examples of mechanical energy: Because so many objects are in motion (or could be in motion), there are literally billions ...
... the other hand, a brick held in your hand has stored mechanical energy that would turn into motion if you dropped it. So, mechanical energy is both potential and kinetic energy. Examples of mechanical energy: Because so many objects are in motion (or could be in motion), there are literally billions ...
5th Homework Due: 7 November 2008 1. In spherical
... For a general motion of the particle, all of r, θ and φ change with time. For such a general motion, calculate ~v and ~a. If one defines, ~v = vr r̂ + vθ θ̂ + vφ φ̂ and ~a = ar r̂ + aθ θ̂ + aφ φ̂, (a) Express vr,θ,φ and ar,θ,φ in terms of r, θ, φ and their derivatives. (b) Express the kinetic energy ...
... For a general motion of the particle, all of r, θ and φ change with time. For such a general motion, calculate ~v and ~a. If one defines, ~v = vr r̂ + vθ θ̂ + vφ φ̂ and ~a = ar r̂ + aθ θ̂ + aφ φ̂, (a) Express vr,θ,φ and ar,θ,φ in terms of r, θ, φ and their derivatives. (b) Express the kinetic energy ...
Potential energy and conservation of energy - Phy 2048-0002
... 130. A metal tool is sharpen by being held against the rim of a wheel on a grinding machine by a force of 180N. The frictional forces between the rim and the tool grind small pieces of the tool. The wheel has a radius of 20cm and rotates at 2.5 rev/s. The coefficient of kinetic friction between the ...
... 130. A metal tool is sharpen by being held against the rim of a wheel on a grinding machine by a force of 180N. The frictional forces between the rim and the tool grind small pieces of the tool. The wheel has a radius of 20cm and rotates at 2.5 rev/s. The coefficient of kinetic friction between the ...
Chapter 7 Energy
... • When we lift a load against Earth’s gravity, work is done. – The heavier the load or the higher we lift the load, the more work is done. – Two things enter the picture whenever work is done: • (1) application of a force, and • (2) the movement of something by that force. ...
... • When we lift a load against Earth’s gravity, work is done. – The heavier the load or the higher we lift the load, the more work is done. – Two things enter the picture whenever work is done: • (1) application of a force, and • (2) the movement of something by that force. ...
