Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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In a satellite model for a science project, given the masses of the three satellites m=1.8 kg, mg= 4 kg, and m.=5 kg that
are connected with massless rods, joined at the point the rotation axis is passing through. The satellites have the distances
rad
R=1.5 m, R = 1 m, and Rc=2 m, from the rotation axis. The system rotates with an angular speed w = 2.7
mA
RA
RB
RC
mc
1. Calculate the moment of inertia I; for this model: /, =
kg m2
m2
kg
2. Calculate the magnitude of the angular momentum L, =
3. Calculate the rotational kinetic energy K, =
J
4. As the system is rotating counter-clockwise the direction of the vector is
The mass mc was not properly glued and breaks away during the rotation.
1. Calculate the moment of inertia /f for this model now. If=
|kg m2
2. Using the conservation of angular momentum, calculate the angular speed wf after the mass m, has broken away during
rad
the rotation. Wf=
3. Calculate the rotational kinetic energy in this situation: K=
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Transcribed Image Text:In a satellite model for a science project, given the masses of the three satellites m=1.8 kg, mg= 4 kg, and m.=5 kg that are connected with massless rods, joined at the point the rotation axis is passing through. The satellites have the distances rad R=1.5 m, R = 1 m, and Rc=2 m, from the rotation axis. The system rotates with an angular speed w = 2.7 mA RA RB RC mc 1. Calculate the moment of inertia I; for this model: /, = kg m2 m2 kg 2. Calculate the magnitude of the angular momentum L, = 3. Calculate the rotational kinetic energy K, = J 4. As the system is rotating counter-clockwise the direction of the vector is The mass mc was not properly glued and breaks away during the rotation. 1. Calculate the moment of inertia /f for this model now. If= |kg m2 2. Using the conservation of angular momentum, calculate the angular speed wf after the mass m, has broken away during rad the rotation. Wf= 3. Calculate the rotational kinetic energy in this situation: K=
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