You are given a 4-bit Serial-In-Parallel-Out register composed of D-flip-flops (positive-edge triggered) and the bits shift from left to right (LSB to MSB). Assume that all FFs are in state 0, initially. Given an input stream, 11010110, answer the following questions: a. Draw the timing diagram for the first 4 clock pulses (time steps), representing the clock signal and the FF states. b. What are the output values between the 6th and 7th clock pulses (ie, the positive edge of the 6th clock pulse has happened, and the positive edge of the 7th clock is yet to happen)?

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?