The acceleration of an object is directly proportional to the force that is causing the acceleration. This is a basic description of
a. Newton’s 1st Law
b. Newton’s 2nd Law
c. Newton’s 3rd Law
d. Newton’s 4th Law
b. Newton’s 2nd Law
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Consider a SAW ARQ system between two nodes: A (transmitting node) and B (receiving node). Assume that data frames are all of the same length and require ? seconds for transmission. Acknowledgement frames require R seconds for transmission, and there is a propagation delay P on the link (in both directions). One in every three frames that A sends is in error at B. B responds to this with a NAK, and this erroneous frame is received correctly in the (first) retransmission by A. Assume that nodes send new data packets and acknowledgements as fast as possible, subject to the rules of stop and wait. What is the rate of information transfer in frames/second from A to B?
What will be an ideal response?
What type of fittings are used to build an offset in a cable tray system?
a. Vertical adjustment splice plates b. Divider strips c.Wyes d. Tees
The condensate from the evaporator coil is disposed of by evaporation using heat from the discharge line or ____.
A. heated air from the condenser B. air from the evaporator fan C. electric heater in the drain pan D. heat from the compressor fins
The waste disposal system should have a ____ inch drop for every horizontal foot of distance.
A. 1/16 B. 1/8 C. 1/4 D. 1/2