Physics, 05.11.2019 20:31 querline87
The diagram below shows two electromagnetic waves. two electromagnetic waves shown side by side. wave 1 (on the left) shows a very low frequency. wave 2 (on the right) shows a high frequency. both waves demonstrate the same amplitude. which of these statements best describes the use of the two waves? (1 point) wave 1 is used to image people's bones and wave 2 is used to transmit cellular phone signals. wave 1 is used to destroy cancerous cells and wave 2 is used to transmit cellular phone signals. wave 1 is used to transmit cellular phone signals and wave 2 is used to destroy cancerous cells. wave 1 is used to destroy cancerous cells and wave 2 is used to detect the location of objects that emit heat.
Answers: 1
Physics, 21.06.2019 20:30
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.
Answers: 2
Physics, 22.06.2019 01:50
Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called
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Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
The diagram below shows two electromagnetic waves. two electromagnetic waves shown side by side. wav...
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