Notes 11.5
Damped Harmonic Motion
In reality, amplitude of any oscillator will slowly decrease over time
Occurs because some energy is dissipated as thermal energy
Called damped harmonic motion
If damping is too large motion will no longer resemble simple
Notes 5.8
A satellites high speed is what keeps it up
Satellite is falling (accelerating towards Earth) because gravity pulls it in, but the
tangential speed keeps it from ever hitting the earth
F = MA
G*(Msat*Mearth/r^2) = Msat*(v^2/r)
[Satellite equatio
Notes 8.5: Rotational Dynamics; torque and rotational inertia
Angular acceleration of a rotating object is proportional to the net torque applied to it
In linear case, acceleration is proportional to both net force and inversely proportional to inertia
(m
Paige Caine
Notes on Chapters 8.1 - 8.4
Motion of rigid objects can be analyzed as the translational motion of the object's center of
mass, plus rotational motion about its center of mass
Purely rotational motion - all points in the object move in circles
Notes 6.1 - 6.4
Work - the product of the magnitude of the displacement times the component of the
force parallel to the displacement
W = Fd
Or
W = Fdcos
(where F is the force parallel to the displacement)
Work is a scalar quantity
Work is measured in jou
Simple Harmonic motion
Periodic motion- when an object vibrates or oscillates back and forth
Equilibrium position- position of mass at center of its oscillation
Is stretched or compressed from here
Restoring force brings object back to equilibrium positio
Electromagnetic Induction
Faraday: convert magnetism into electricity
What we know
Current in a wire generates magnetic field
Field of a solenoid is similar to that of a bar
magnet
Strength of magnetic field depends on
permeability ( magnetic propertie
45
Chapter 26
(# 1, 8, 9, 17, 28, 35, 40, 43, 53, 64)
1. During the 4.0 min a 5.0 A current is set up in a wire, how many (a) coulombs and
(b) electrons pass through any cross section across the wires width?
1. (a) The charge that passes through any cross
Near-Infrared imaging spectroscopy of the surface of Mars at meter-scales to
constrain the geological origin of hydrous alteration products, identify candidate
sites and samples for future in-situ and sample return missions, and guide rover
operations.
Au