Answer with Explanation:
We are given that
Diameter=0.030 m
Length of sprue=
=0.200 m
Metal volume flow rate,Q=0.03
Q=
because 1 minute=60 seconds
Let 1 for the top and 2 for the bottom






Pressure at the top and bottom of the sprue is atmospheric

Substitute the values






Reynolds number=


Substitute the values then we get
Reynolds number=
Reynolds number=42525
The Reynolds number is greater than 4000 .Therefore, the flow is turbulent.
I think it`s D but iam not so sure
Answer:
0.17 degrees
Explanation:
From the question we are given the following:
acceleration due to gravity = 
radius (r) = 6.5 cm = 0.065 m
time (s) = 9.3 s
angle = ?
- we first have to calculate the distance the water moves, and this is the circumference of the microwave
circumference = 2 x π x r = 2 x π x 0.065 = 0.408 m
- Now we find the speed with which it moves at
speed = 
=
= 0.044
- The next step is to find the centripetal acceleration
a = 
=
= 0.03
being a vector quantity, acceleration has direction, the centripetal acceleration is the x component while the y component would be the acceleration due to gravity (g)
A = 0.03 x + 9.8 y
to find the angle we can apply tan θ = 
θ = 0.17 degrees
Answer:
<h2>velocity =25</h2>
Explanation:
<h3>Average velocity =total displacement <em>/</em><em>time </em><em>e </em><em>taken</em></h3>
<em>so,</em><u>average </u><u>velocity</u><u> </u><u>=</u><u>total </u><u>displacement</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>total </u><u>time </u>taken
100m/4 =25
<h2>
velocity =25</h2>