Reflect upon the topics we have covered this semester. based on what you know about institutions (constitution, federalism, legislature, executive, and judiciary) and processes (public opinion, media, interest groups, political parties, campaigns, and elections), assess in what ways the u. s. political system is democratic and in what ways it is less than fully democratic? consider the democratic values of popular sovereignty, political equality and political liberty in your assessment. what might/should be done to make the system more democratic?

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?