A. A compound gear train is composed of four gears: E, F,G, H. Gear E has 15 teeth and is meshed with gear F. Gear F has 25 teeth and shares a shaft with Gear G, which has 18 teeth. Gear G is meshed with Gear H, the output gear. Power is supplied at gear E with 150 ft. lb of torque and is moving at 2000 rpm. A. Sketch and annotate the gear train described above.

B. The necessary torque output of the system is 600 ft. lb. What should the gear ratio of the system be?
Formula Sub/solve Final answer(3 SF)

C. With a system torque output of 600 ft. lb, how many teeth should gear H have?
Formula Sub/solve Final answer(3 SF)

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

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?

Brief discuss how the presence of dislocations in crystal structures can be an advantage and a disadvantage to engineer and designers.