What gauge pressure is required in the city water mains for a stream from a fire hose connected to the mains to reach a vertical height of 16.0 m?

1.57 x 10^5 Pa

Explanation:

Height, h = 16 m

acceleration due to gravity, g = 9.8 m/s^2

density of water, d = 1000 kg/m^3

gauge pressure, P = h x d x g

P = 16 x 1000 x 9.8

P = 1.57 x 10^5 Pa

Thus, the gauge pressure is 1.57 x 10^5 Pa.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.