Physics, 19.08.2020 17:01 CameronVand21
Find the current through a person and identify the likely effect on her if she touches a 120 V AC source in the following circumstances. (Note that currents above 10 mA lead to involuntarily muscle contraction.) (a) Find the current (in mA) if she is standing on a rubber mat and offers a total resistance of 330 kΩ. mA Identify the likely effect. 1. She will experience muscle contraction for the duration of the shock. 2. She will feel nothing. (b) Find the current (in mA) if she is standing barefoot on wet grass and has a resistance of only 3600 kΩ. mA Identify the likely effect. 1. She will experience muscle contraction for the duration of the shock. 2. She will feel nothing.
Answers: 1
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Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be
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Physics, 22.06.2019 01:10
Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)
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Physics, 22.06.2019 10:30
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Find the current through a person and identify the likely effect on her if she touches a 120 V AC so...
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