Two very large parallel plates are maintained at uniform temperatures T1 = 800 K and T2 = 500 K and have emissivities & =0.2 and ɛ2 = 0.7, respectively, as shown. determine what net rate of radiation will be obtained once the two parallel plates' temperatures are doubled but with the same emissivities. & = 0.2 T = 800 K %3D E2 = 0.7 T, = 500 K

Moving to another question will save this response. Question 1 Which of the following statement is NOT correct? Fluid Mechanics is the study of the behaviour of fluids. Fluid Mechanics is the study of the behaviour of solids. Fluid Mechanics is the study of the behaviour of liquids. Fluid Mechanics is the study of the behaviour of gases.

I am attaching both questions for 4 and 5 with the question in the image. thank you. NOTE : So the last person answered this question WITHOUT refencing the answer for whether question 4 or 5 answeres were given, so i am asking for question 5(or the answer for the question that was NOT solved because it was not referenced.) These were the following answers given to me from the last person on bartleby who answered my question without referencing whether it was the answer for question 4 or 5.  1 pass 2 fail 3 fail 4 pass

Please do the last three questions (2, 3 and 4)! Thank you in advance!  A seesaw that weights 45lbs and its 5m long is balanced on the fulcrum in the center.  1- Two children are sitting on opposite sides of each other on the seesaw. One child weights 50lbs and is sitting 0.7m on the left end. Where should the other child sit in order to be balanced on the seesaw if they weigh 42lbs?  2- Now, a third child wants to sit on the seesaw and weighs 30lbs and is sitting 1.25m in front of them and is closer to the fulcrum on the right side. What are the CW and CCW moment of the seesaw now? What is the net moment and direction?  3- Then, a fourth child wants to play on the seesaw and is on the left side of the plank in order to bring the system to equilibrium. How much does the child weigh (Calculate the pounds of force needed in order for rebalance?)  4- Now the fourth child leaves the other three children sitting on the plank. If the three children are sitting in the same potions as they did…