Extension of the elbow? im not sure
Answer;
-A vent stack
Explanation;
-A vent stack is best described by, the vertical, upper portion above the top-most fixture through which gases and odors escape the sanitary drainage system, carrying no liquids or solids.
-The vent stack usually runs parallel with the soil/waste stack and may either extend up through the roof or connect to a stack vent. While a stack vent is the uppermost portion of a soil/waste stack that continues the pipe from above the highest connected fixture out the roof.
Hello! To find mass, you have to do force/acceleration. In this case, we would do 1500/35. When you do that, you would get a bunch of numbers on a calculator, but it would be 42.86 when rounded to the nearest hundredth. The mass of the object is 42.86.
Answer:
Explanation:
Given
y(x) = x² + x ( x represents time in seconds )
A )
value of y at x = 2
= 2²+2 = 6 m
value of y at x = 5
= 5²+5 = 30 m
displacement = 30 - 6 = 24 m
Time duration = 5 - 2 = 3 s
average velocity
= displacement /Time duration
= 24 / 3 = 8 m /s
B ) For x changing from x to x plus ie for small change in x :
value of y at x = 2
= 5
For small change in x , the value of y will again be 5 so displacement during small change in x will be zero . Hence average velocity will be zero.
C )
y(x) = x² + x
dy / dx = 2x + 1
dy / dx represents instantaneous velocity
so when x = 2
instantaneous velocity = 2 x 2 +1
= 5 m /s