In a particular air flow over a heated surface, the boundary layer temperature distribution is approximated as               u y T T T T s s 1 exp Pr where y is the distance normal to the surface and the Prandtl number is 0.7. If T[infinity] = 400 K, Ts = 300 K, and u[infinity]/ν = 5000 m-1 , what is the surface heat flux?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

How would a small bar magnet be oriented when placed at position x?

Name two kinds of practical electric pumps.