In a 3x3m square flat horizontal solar collector the outside of the glass cover of the collector is at 40 c and the ambient air is at 10 c with wind parallel to the surface of the collector at velocity of 10m/s. find: a. the rate of heat loss by convection from the glass b. the friction coefficient, cf on the glass c. if the wind dies down find the rate of heat transfer from the glass assuming its outside temperature remains the same.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

What is a monomer? how do they form a ploymer from the view point of chemical bonding?

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.