Question

A hose pipe ejects water at the speed of 0.3m/s through a hole of area 10cm2, flow rate will be? A(3). B(3×10^-4). C(30). D(0.03)​

Answer 1

Answer:

answer is B(3×10^-4)

Explanation:

we know that

  flow rate =  Area * Velocity

  convert 10cm^2 to m^2

  1m = 100cm

  1m^2= 10,000cm^2

  1/10,000 = 1cm^2

  1 cm^2 =  1*10^4

   flow rate = area * velocity

                   = 1 *10^-4 * 0.3

                   = 3×10^-4   Ans