The student obtains a series of measurements for current and potential differenc State the dependent variable in this investigation.
Give two ways through which the student can ensure that the results are reliable
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Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force