Consider the experiment of Problem 1.27, in which a frictionless puck is sliding straight across a rotating turntable through th
e center 0. (a) Write down the polar coordinates r, > of the puck as functions of time, as measured in the inertial frame S of an observer on the ground. (Assume that the puck was launched along the axis>= 0 at t = 0.) (b) Now write down the polar coordinates r', >'of the puck as measured by an observer (frame S') at rest on the turntable. (Choose these coordinates so that> and>' coincide at t = 0.) Describe and sketch the path seen by this second observer. Is the frame S' inertial
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Answer:
The answer is below
Explanation:
1) The synchronous speed of an induction motor is the speed of the magnetic field of the stator. It is given by:
2) The speed of the rotor is the motor speed. The slip is given by:
3) The frequency of the rotor is given as:
4) At standstill, the speed of the motor is 0, therefore the slip is 1.
The frequency of the rotor is given as:
Answer:
.
Explanation:
Given that
L= 50 m
Pressure drop = 130 KPa
copper tube is 3/4 standard type K drawn tube.
From standard chart ,the dimension of 3/4 standard type K copper tube given as
Outside diameter=22.22 mm
Inside diameter=18.92 mm
Dynamic viscosity for kerosene
We know that
Where Q is volume flow rate
L is length of tube
is inner diameter of tube
ΔP is pressure drop
μ is dynamic viscosity
Now by putting the values
So flow rate is .