Answer:
Explanation:
Given that:
Gage pressure at the inlet = 20psig
Inlet diameter D = 4 in
Exit diameter d = 1.5 in
Volumetric flow rate at inlet
= 2ft³?s
Applying continuity and the x component of the momentum;
we have:
Q =
=
Velocity at inlet is calculate as :
= 22.92 ft/s
Velocity at the exit:
= 162.98 ft/s
The required external force can be calculated by using the formula:
Thus, the external force required to hold the orifice in place
Friction can be useful when you trying to stop a car, also it can be useful in energy losses, increase wear and tear and produces heat
Answer:
Nothin will move, it will stay the same since no force is greater than the other. it's "the same amount of force" which also means an equal amount of force
Explanation:
The forces are only equal if there is no acceleration (which in the game of tug of war, accelerating yourself and your opponent is the idea). If the force on the rope and the ground are both equal either nothing moves or some other force is being applied in the system.
Hope this helped!
Answer
given,
Length of the string, L = 2 m
speed of the wave , v = 50 m/s
string is stretched between two string
For the waves the nodes must be between the strings
the wavelength is given by
where n is the number of antinodes; n = 1,2,3,...
the frequency expression is given by
now, wavelength calculation
n = 1
λ₁ = 4 m
n = 2
λ₂ = 2 m
n =3
λ₃ = 1.333 m
now, frequency calculation
n = 1
f₁ = 12.5 Hz
n = 2
f₂= 25 Hz
n = 3
f₃ = 37.5 Hz