Answer: Nu = h Lc ÷ k
Explanation: The Nusselt number (Nu) can be defined as the ratio of convective to conductive heat transfer at a boundary in a fluid.
Nu = Convective Heat Transfer h Lc
-------------------------------------- = ---------
Conductive Heat Transfer k
Where h = conductive hear transfer
Lc = length of the surface
k = thermal conductivity of the fluid
The answer is B 5.40 x 10^14 Hz
The Cambrian period I think
Answer:
OH^-
Explanation:
Any substance that is able to neutralize acidity in the stomach is generally known as an antacid. There are various kinds of antacids that are in common use. It should be noted that the stomach is usually slightly acidic.
Milk of magnesia is the substance magnesium hydroxide with chemical formula Mg(OH)2. A solution of milk of magnesia contains Mg^2+ and OH^-.
Hence the negative ion contained in milk of magnesia is the hydroxide ion OH^-.
