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shawngill

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shawngill

Pressure

A jar of Sweet and Sour sauce has a lid with a small circular "button" at its centre. The printing on the lid reads "Safety Button: pops up when original seal is broken". Explain (1) why the button...
15:17 Thu 18th Oct 20074 answers, last by bigmamma 21:42 Thu 18th Oct 2007
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shawngill

blood flow

Blood flows in an aorta of radius 10 mm at a speed of 0.30 m/s. What is the Reynolds number for the flow? Comment on the value obtained. (The viscosity of blood is 3.7 mPa s at 37?C, and blood density...
15:16 Thu 18th Oct 20071 answer, last by newtron 18:30 Thu 18th Oct 2007
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shawngill

blood flows

Blood flows in an aorta of radius 10 mm at a speed of 0.30 m/s. What is the volume flow rate: give your answer in litre/minute?
15:14 Thu 18th Oct 20071 answer, last by newtron 18:16 Thu 18th Oct 2007
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shawngill

science

Suggest a reason why wind speed is much faster several metres above ground than it is just above the ground.
15:00 Thu 18th Oct 20077 answers, last by donella 22:17 Fri 19th Oct 2007
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shawngill

air pressure

Assuming that atmospheric pressure is 100 kPa, estimate a value for the (crushing) force on the average-sized human body due to air pressure.
14:57 Thu 18th Oct 20072 answers, last by MatydaLover 17:47 Thu 18th Oct 2007
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shawngill

Environmental sciences

A surveyor uses a tape, graduated in cm, to measure a rectangular plot of land. He records the length as 5.34 m and the breadth as 7.19 m. What would be the "best" value which could be given for the...
18:12 Mon 08th Oct 20072 answers, last by Halki 08:59 Tue 10th Jan 2023

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