Velocity head is the mechanical energy of a fluid per unit weight of the fluid measured relative to the bottom of the channel. a. True
b. False

b. False

Explanation:

The Bernoulli's equation is given by;

Divide through by the density of the fluid and acceleration due to gravity (ρg), to obtain energy per unit weight of the fluid known as head;

where;

is pressure head

h is datum head (mechanical energy due to height of the fluid)

is velocity head (mechanical energy due to velocity of the fluid)

Thus, the mechanical energy of a fluid per unit weight of the fluid, measured relative to the bottom of the channel is datum head.

The correct option is "b. False"

at right angles to each other

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.