'Same pipe' presentation slideshows

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Sketch A shows two identical pulses traveling in opposite directions along a string, each with a speed of 1.0 cm/s. After 4.0 s, the string will look like which of the other sketches?. 1 2 3 4 5.

696 views • 42 slides

PBX vs Centrex

PBX vs Centrex. Garry Meadows Steve Klesper Tom Ondick Aaron Hurt Ron Pridemore Tim Wade. Considerations. Introduction Definition of PBX Definition of Centrex Cost Responsibility / Control Flexibility Support Security Drawbacks Advantages Small Company Options

706 views • 16 slides

A Brief History of Human Waste Disposal Part 3: Sewerage

369 views • 15 slides