If the velocity of a flow over a flat plate is increased four times, and the flow remains in the laminar regime, with all other properties remaining the same, the heat transfer coefficient a) will be four times higher b) will be doubled c) there is not enough information to determine

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

Consider a spherical container of inner radius , outer radius r2, and thermal conductivity k. express the boundary condition on the inner surface of the container for steady one-dimensional conduction for the following cases: (a) specified temperature of 50°c, (b) specified heat flux of 30 w/m2 toward the center, (c) convection to a medium at t with a heat transfer coefficient of h