Physics, 15.02.2020 01:20 catPIE2473
A class 10(10 particles/ft^3 > 5 mu m diameter) cleanroom is designed with 9 - foot high ceilings. To maintain this level of cleanliness, 50 air exchanges per hour are required (the total volume of air in the room is replaced with new air 50 times/hour). What is the total number of particles that would hit a surface one square foot in an area perpendicular to the airflow in 1 minute? 1 hour? 24 hours?
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The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
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Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?
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A class 10(10 particles/ft^3 > 5 mu m diameter) cleanroom is designed with 9 - foot high ceilings...
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