Answer:
maximum flow speed is 5.278 cm/s
Explanation:
given data
temperature = 20°C
diameter d = 3.8 cm
density of water ρ = 1 × 10³ kg/m³
to find out
maximum flow speed
solution
we have given steam line flow so it is laminar flow
and for laminar flow we know reynolds number is Re= 2000
so
Re =
............1
here μ is dynamic viscosity = 0.001003 for 20°C for water
put all value in equation 1
Re =
2000 =
solve it we get v
v = 0.0527 m/s
so maximum flow speed is 5.278 cm/s
Answer:
power = 384.92 W
Explanation:
given data
resistance = 44.0 Ω
impedance = 71 Ω
ΔVrms = 210 V
to find out
average power
solution
we know here power formula that is
power =
cos∅ .........1
we know here cos∅ = 
cos ∅ =
= 0.6197
so from equation 1
power =
× 0.6197
power = 384.92 W
An Exothermic Reaction , gives off more heat, and a little energy to its surroundings.
this can helps us figure out that the answer is , C, More heat is given off into its products.
most people would choose D, but i beg to differ.
Circle graph is the type of graph which most clearly shows the part or percentage related to the whole.
<u>Explanation:</u>
Graphs are the easiest tool to show the change in a given dependent variable with respect to independent variable. The influence or the effects will be seen in the graphs.
There are different kinds of graph like circle graph, bar graph, line graph. Each of these have their own method of showing the change in the dependent variable. Among them, circle graph is the one which will help to show the percentage of each variable related to the whole.