Consider the translational vibrations of a "small" rigid lathe along the cutting direction. A model of this system has a stiffness element k = 20 x 10^6 N/m, an inertia element m = 22.5 kg, and a damping coefficient /m. Determine the free response of this system for a 5 mm initial displacement and zero initial velocity. Plot the response and discuss it. How does the nature of the response of the system change when the damping coefficient is increased to.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

it would be c. predictability

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