A three-phase wye-connected generator supplies 2400VAC 60Hz in each phase. It is connected to a 4160-480/277 (DELTA-WYE) transformer. The secondary of the transformer is connected to a WYE configured load, each phase being a 100-ohm impedance at 0.7% pf. Ignore the line and transformer impedances. Calculate the following:
1. Secondary phase voltage of the transformer (each phase)
2. Secondary line voltage of the transformer (each phase)
3. Secondary line current of the transformer (each phase)
4. Secondary phase current of the transformer (each phase)
5. Load line current (each phase)

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

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?