Т2 KN KN MPa MPA MPa MPa

That is the answer I have and it is marked as wrong, could you please do it again and see if you get another answer?

(b) The water is siphoned out of the tank shown in Figure 4 (b). Determine the flow rate from the tank and the pressures at points (1) and (2).

Select the correct statements regarding the addition of moments.  (Select 3)    Moments have directions, so a negative value implies it is along the opposite direction from the reference direction.            All the moments need to have the same reference point/pivot in order to add together.            Calculate each moment by multiplying each force with its distance to the reference point, and add all values together, regardless of their direction.            You have to define the reference direction first, either clockwise or counter-clockwise.

Q3/ Choose the correct option:-

can you resolve? seems to be incorrect

It's saying this is not correct. Thank you for your help.

For the last portion, why do you divide by two?

for 2 can you please do a sketech veriation of it?

Q1 (а) A tall standpipe as shown in Figure Q1(a) with an open top has an inner diameter 7 d=2.1 m and wall thickness t= 20 mm, Given the weight density of water y = 9.81 kN/m³ and water pressure is p = y h, calculate the height h of water that will produce a circumferential stress of 12 MPa in the wall of the standpipe. (i) (ii) Calculate the axial stress in the wall of the tank due to the water pressure.