Q5/ A message signal with power equal to 0.5 watt is used to modulate a carrier signal with amplitude equal to 10 volt and frequency of 100 kHz. It is found that the power of the double side band represents the entire power of the bandpass signal. Answer the following: 1-According to the given information, what is the type of the modulation?
2-The total power of the bandpass signal : (Please write a number without units)
3-If the bandpass signal is applied on the input of a synchronous detector, then what is the value of the power of the output signal? (Please write a number without units)

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?