You wish to fill a child's inflatable wading pool by using a garden hose. the hose you are using has an inside diameter of 3.0 cm and water travels though it at a speed of 1.5 m/s. if the pool is circular with an inside diameter of 3.1 m and you wish to fill it to a depth of 43 cm, determine the time (in minutes) required to fill the pool to this depth.

51.02 minutes

Explanation:

d = Diameter

r = Radius =

h = Height of pool = 0.43 cm

v = Speed of water = 1.5 m/s

A = Area =

Volume flow rate is given by

Volume of water needed is given by

Time taken is given by

The time taken to fill the pool is 51.02 minutes

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz