Answer:
The tank should be empty in about 2-1/4 hours. Variables: h = elevation of tank D = diameter of tank A = orifice area (ft2) G = gravitational acceleration = 32.2 ft/sec2 ∆t = time required to empty tank (sec) The following formulas are based on turbulent flow of a Newtonian fluid through an outlet (orifice) in a tank.Explanation:Measure the number of liters or gallons in the container, and divide that number by 15. This gives the flow rate in liters per second or gallons per second. The formula is F = V/T, where F is the flow rate, V is the volume and T is the time.=180 s=3 min.
Newton's second law of motion involves the effect of force acting on a mass.
It has to be understood that this actually means the combination of any and
all individual forces acting on it, with their individual strengths and directions
all added together.
When all the individual forces acting on an object add up to zero, then the
whole group of forces is said to be 'balanced'.
When all the individual forces acting on an object don't add up to zero, then
the whole group of forces is said to be 'unbalanced'.
Notice that there's no such thing as 'a balanced force' or 'an unbalanced force'.
It's a <u>group</u> of two or more forces that's balanced or unbalanced.
Answer:
t= 2 sec
Explanation:
Given that
Ui= 16 m/s
Vi= 20 m/s
As we know that at the maximum height ,the y component of velocity will become zero.
We know that horizontal component of velocity will remain constant trough out the motion.
We also know that acceleration due to gravity is in downward direction.
Vf= Vi- g t
Now by putting the values
0 = 20 - 10 x t ( take g= 10 m/s²)
20 = 10 t
t= 2 sec
Therefore the answer is 2 sec.
A unit of measurement expressing the intensity of a sound of power of an electrical sound
Answer:
Height of the object=19.43 cm
Explanation:
In the attached file