What pressure (in Pa) will be exerted on the bottom of a 63.5 kg hiker's foot when she stands on a rusty nail? Assume the diameter of the tip of the nail is 1.00 mm. The acceleration due to gravity is 9.81 m/s2. Recall that the area of a circle is: 
and that 1 Pa 1 kg m1 s2.
Definitions:
Short-range
Describes devices or technology designed to operate effectively over a short distance, typically up to a few hundred meters, suitable for local area networks or personal area networks.
Wireless Network
A telecommunications network that enables devices to connect and communicate with each other without the need for physical cables.
L-commerce
Location-based commerce, which uses real-time data through mobile devices to provide users with information or services based on their current location.
Telemetry
The wireless transmission and receipt of data gathered from remote sensors.
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