For Tuesday, do the standing waves worksheet posted November 1.
For Monday do the following:
Waves:
Find the wave speed for a transverse wave on a 5 m long clothes line with a mass of .2 kg ( for the whole 5 m) with a tension 160 N. How long does It take a wave to get from one end to the other?
A sound wave is traveling through a metal with a modulus of elasticity, Y, of 4 E11N/m^2 and a density, rho, (i.e. greek r), of 8,000 kg/m^3. What is the speed of the sound?
Answer the following questions from presentations. ( Numbers in [ ]represent section which must answer)
[ 2,3]What is the expression for the Coulomb force between charges. What is the force between a negative 1E-6 Coulomb charge and a negative 2E-6 Coulomb charge 2 m apart? Is it attractive or repulsive?
[2,3] Does the magnetic force occur to motionless charged particles or only moving ones?
[3] When ocean waves approach the shore do they speed up or slow down? Do they get taller? Does their frequency change?
[2,3] What causes normal waves (not tsunamis) in the ocean.
[2] What is the relationship between photon frequency and photon energy?
[2] Lasers require more electrons in ground state then normal or more electrons in excited state?
[2] Ocean wave energy is proportional to sqrt of height, height, square of height?
[3] How many types of quark are there? How many types of antiquark?
[3] How many quarks of what type are in each proton? each neutron?
[3] The force between quarks is related to their________
[3] are there quarks in leptons
[2] How many nodes are there on a guitar string for the fundamental (also called the first harmonic)?
[2] What does shortening the string do to the frequency?
No comments:
Post a Comment