In c++, write a program that will input three c-strings into an array of c-strings. print only those that end in "es" or begin in "yan". use the following: char cstr[3][30]; use for loops to fill up the array and to loop through the c-strings for the searches. the input c-stirings could include spaces and multiple words. you will search two different ways. first, use a c-string function to find the length so you know where the last two characters are, then compare the last two characters separately as an array. second, use a c-string function to compare, all at once, just the first three characters in the c-string (a function similar to strcmp, but that will only compare a certain number of characters).

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?