What is the coils power factor
A coil that has a resistance R and an inductance L has a power factor equal to 0.866 when driven at a frequency of 44Hz. What is the coil's power factor if it is driven at 176 Hz?
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A muon and an antimuon are moving in opposite directions with velocities of -0.9 c and 0.9 c, respectively. When they collide, they can annihilate each other and turn into two photons. Both muon and antimuon have a mass of 105.66 MeV/c2. 1.) What
A four-cylinder two-stroke 2.0-L diesel engine that operates on an ideal Diesel cycle has a compression ratio of 22 and a cutoff ratio of 1.8. Air is at 70°C and 97 kPa at the beginning of the compression process.
An analysis of variances produces df = 3 and df = 24. If each treatment has the same number of participants, then how many participants are in each treatment?
A rectangular channel 3-m-wide carries 10 m^3/s at a depth of 2m. Is the flow subcritical or supercritical? For the same flowrate, what depth will five critical flow?
The Froude number changes from a subcritical value of 0.5 to a supercritical value of 3.0. Determine the channel width at 2 if it is 12 ft wide at 1.
A coil is connected to a 60 Hz ac generator with a peak emf equal to 80 V. At this frequency the coil has an impedance of 14 and a reactance of 12 . (a) What is the peak current in the coil?
A blood test indicates the presence of a particulat disease 95% of the time when the disease is actually present. The same test indicates the presence of the disease 0.5% of the time when the dsease is not present. 1% of the population actually ha
A fuel oil is analyzed and found to contain 85.0 wt% carbon, 12.0% elemental hydrogen (H), 1.7% sulfur, and the remainder noncombustible matter.
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