Are spheroidized steels considered as composite? If so, what is the dispersed phase a)- No b)- Yes, Chromium Carbides c)- Yes, I
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At equilibrium, the sum of clockwise and anticlockwise moments about a point is zero
The mass of that balances the system is kg
The normal reaction force at the fulcrum is <u>5,804.25 N</u>
Rason:
The mass of the stick = 150.0 g
Mass m₁ on the left = 50.0 g, location = 30 cm to the left of m₂
Mass m₂ on the left = 75.0 g, location = 40 cm to the left of the fulcrum
Mass m₃ on the right of the fulcrum. location = 30 cm to the right of the fulcrum
Required:
To find the mass of m₃
Solution:
Taking moment about the fulcrum, we have;
50 × (30 + 40) + 75 × (40) + 150 × 20 = m₃ × 30
9,500 = m₃×30
The mass of that balances the system when it is attached at the right end of the stick, m₃ = kg
Normal reaction at the fulcrum = (50 + 75 + 150 + ) × 9.81 = 5804.25
The normal reaction at the fulcrum is 5,804.25 N
Learn more about the moment of a force here:
Answer:
Time needed to empty the pool is 401.35 seconds.
Explanation:
The exit velocity of the water from the orifice is obtained from the Torricelli's law as
where
'h' is the head under which the flow of water occurs
Thus the theoretical discharge through the orifice equals
Now we know that
Thus using this relation we obtain
Now we know by definition of discharge
Using the above relations we obtain
The limits are put that at time t = 0 height in pool = 1.5 m and at time 't' the height in pool = 0
Solving for 't' we get