Answer:
The Reynolds numbers for flow in the fire hose.
Explanation:
Given that,
Diameter = 6.40 cm
Rate of flow = 40.0 L/s
Pressure 
We need to calculate the Reynolds numbers for flow in the fire hose
Using formula of rate of flow


Where, Q = rate of flow
A = area of cross section
Put the value into the formula


We need to calculate the Reynolds number
Using formula of the Reynolds number

Where,
=viscosity of fluid
=density of fluid
Put the value into the formula


Hence, The Reynolds numbers for flow in the fire hose.
Answer:
Because they are both easy to measure (?)
Explanation:
(I'm not really sure, there are no choices. If there were different options I might be able to better answer this)
sodium is found in group one element, but flourine members of halogens . oxygen found in group six element ,but hydrogen found in group 1( according to periodic table)
Answer:
The Answer is 0.019998c
Explanation:
Please see the attached Picture for the answer.
I think answer should be d. Please give me brainlest I hope this helps let me know if it’s correct or not okay thanks I appreciate it