 #1
LCSphysicist
 636
 153
 Homework Statement:

a) Find the frequency of vibration under adiabatic conditions of a column of gas confined to a cylindrical tube, closed at one end, with a wellfitting but freely moving piston of mass m.
b) A steel ball of diameter 2 cm oscillates vertically in a precisionbore glass tube mounted on a 12liter flask containing air at atomospheric pressure. Verify that the period of oscillation should be about 1 sec. (Assume adiabatic pressure change with γ = 1.4, Density of steel = 7600
 Relevant Equations:
 All below.
The problem is easy to solve, the question i have is another about static.
Why when we get:
F = (A*p*γ/l)y
Can't we just substitute p*a = m*g? If this is a oscillation, it will be about some equilibrium position, where the net force is zero and which was the initial position of the body, in such position, p*a = m*g, but why this is wrong?
Why when we get:
F = (A*p*γ/l)y
Can't we just substitute p*a = m*g? If this is a oscillation, it will be about some equilibrium position, where the net force is zero and which was the initial position of the body, in such position, p*a = m*g, but why this is wrong?