A5m x 3m roof-mounted heating panel for an outdoor pool absorbs 300 w/m2 on a sunny day. if 20°c water flows into the panel at 10 l/min, what temperature will the water be when it exits? (a)26.5°c (b) 6520°c (c) 20.4°c (d) 59°c

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86