Vibrations Question The following is used to model a wave that impacts a concrete wall created by the US Navy speed boat. Derive the complete piecewise function of F(t) and F(tau) The concrete wall is 2.8 m long with a cross-section area of 0.05 m2. The force at time equal zero is 200 N. It is also known that the mass is modeled as lumped at the end of 1200 kg and Young’s modulus of 3.6 GPa

A machine part of mass 1.95 kg vibrates in a viscous medium. Determine the damping coefficient when a harmonic exciting force of 24.46 N results in a resonant amplitude of 1.27 cm with a period of 0.20 s. 3-1

Question A student performs an experiment that involves the motion of a pendulum. The student attaches one end of a string to an object of mass � and secures the other end of the string so that the object is at rest as it hangs from the string. When the student raises the object to a height above its lowest point and releases it from rest, the object undergoes simple harmonic motion. As the student collects data about the time it takes for the pendulum to undergo one oscillation, the student observes that the time for one swing significantly changes after each oscillation. The student wants to conduct the experiment a second time. Which two of the following procedures should the student consider when conducting the second experiment? Select two answers.     Responses Make sure that the length of the string is not too long. Make sure that the mass of the pendulum is not too large. Make sure that the difference in height between the pendulum’s release position and…

A 48 kg block on a horizontal surface is attached to a 153 N/M Spring. The block is exhibiting SHM with an amplitude of 3.4 M. The surface is frictionless use this to fill in the table. Help pls

IT WAS FOUND WHEN BOBBING FOR APPLES THAT A WHOLE CYCLE FOR BOBBING = 0.7 SECONDS INITIALLY DISPLACED BY IF THE APPLE WAS 10.03m-FIND THE FOLLOWING: GIVEN: PERIOD OF OSCILLATION OF APPLES = 0.1 SECONDS FREQUENCY OF OSCILLATION OF APPLES: 1.428 Hz ANGULAR FREQUENCY = 8.97 rad/s FIND: AMPLITUDE OF POSITION OF APPLE AFTER 5 SECONDS VELOCITY OF APPLE AFTER 5 SECONDS. ACCELERATION OF APPLE AFTER 5 SECONDS OSCILLATION = m m m/s m/s2

Question 7 (10 pts) You are working on a simple oscillations lab related to pendulums. The goal of the lab was to find the period of oscillation of the pendulum but you notice something interesting about the motion. The pendulum does not accurately represent pure SHM. Instead, the motion seems to be damped (likely by friction at the pivot). To go above and beyond for your lab, a.) Come up with a way to find the time constant of the damped oscillation. You may use any tools at your disposal from the lab. If you prefer, you may also consider the setup as a mass on a spring rather than a pendulum. b.) In terms of the measured time constant T, what is the half-life of the oscillation? Show your work.