Substances a-d have the following specific heats (j/(kg*k)): substance a: 900; substance b: 170; substance c: 270; substance d: 4,180. which substance would be the best for transferring heat in a heating or cooling system? a. substance a b. substance b c. substance c d. substance d **not sure! you: )

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.

Which two particles are found in the center of an atom

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.