It is an real machine because if efficiency is below100% it is real machine but if efficiency is 100% it is an ideal machine
A) 1 rev = 2π rad. Using this ratio, you can find the rad/s: 1160 rev/min x 2π rad/rev x 1 min/60 s = 121.5 rad/s
b) You can find linear speed from angular speed using this equation (note the radius is half the diameter given in the question): v = ωr = 121.5 rad/s x 1.175 m = 142.8 m/s
c) You can find centripetal acceleration using this equation: a = v^2/r = (142.8 m/s)^2 / 1.175 m = 17 355 m/s^2
To develop this problem it is necessary to apply the concepts related to frequency from Hooke's law.
By Hooke's law we know that the Force is defined as
Where,
k = Spring constant
Displacement
at the same time Force can be defined by Newton's second law as,
F = mg
Where,
m = mass
g = gravity
Equating we have
Frequency and oscillation can be defined as
Then replacing,
Answer:
the detection of the equivalence point, the point at which chemically equivalent amounts of the reactants have been mixed.
Answer:
v = 0.969 m/s
Explanation:
See attachment for FBD
p = 0.25*(4/5) = 0.2 m
Sum of normal forces
Ns (3/5) - 0.2*Ns*(4/5) = 2 * (v^2 / 0.2)
Sum of vertical forces
Ns (4/5) - 0.2*Ns*(3/5) = 2*9.81
Solve both equations simultaneously to get Ns and v
Ns = 21.3 N
v = 0.969 m/s