The RS-232 is used to transmit higher speed signals than the V.35
Indicate whether the statement is true or false
FALSE
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UPS battery back-up systems in hospitals _________________
A. are used to power the hospital's entire load during a blackout B. are used to reduce peak demand C. are used to start emergency generators during a power outage D. are used to provide power during the transition period which is the time it takes for an emergency generator to start and come on line
Solar radiation is incident on a 5-m2 solar absorber plate surface at a rate of 800?W/m2. Ninety-three percent of the solar radiation is absorbed by the absorber plate, while the remaining 7 percent is reflected away. The solar absorber plate has a surface temperature of 40°C with an emissivity of 0.9 that experiences radiation exchange with the surrounding temperature of ??5°C. In addition, convective heat transfer occurs between the absorber plate surface and the ambient air of 20°C with a convection heat transfer coefficient of 7?W/m2•K. Determine the efficiency of the solar absorber, which is defined as the ratio of the usable heat collected by the absorber to the incident solar radiation on the absorber.
What will be an ideal response?
A manlcurlstos license expired 6 months ago, to renew the license, the manicurist must now:
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Define the term polymer and relate it to the term plastics
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