Water towers store water above the level of consumers for times of heavy use, eliminating the need for high-speed pumps. how high (in m) above a user must the water level be to create a gauge pressure of 4.63 ✕ 105 n/m2?

So height will be 47.387 m

Explanation:

We have given gauge pressure

Density of water

Acceleration due to gravity

We know that pressure is given as

So height will be 47.387 m

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

snell's law

refractve index = sin incidence / sin refraction