Question
In: Physics
1.A physical pendulum is formed by a two-part structure. One part is a thin uniform rod...
1.A physical pendulum is formed by a two-part structure. One part is a thin uniform rod of mass 0.72 kg which is free to swing about an axis at one end. The axis of rotation is perpendicular to the plane of the rod's swing. The second part of the structure is a small mass located at the free end of the rod (further from the axis), which has mass 0.22 kg. Treat the small mass as a point mass. The rod/mass combination swings with a period of oscillation of 1.4 s. What is the length of the rod in meters?
2.A large, solid sphere (mass = 85 kg) with a radius of 19 cm is suspended by a vertical wire. In order to rotate the sphere about the wire by an angle of 0.67 radians and hold it in that orientation, a torque of 0.26 Nm is needed. What is the period(in seconds) of oscillation of the rotating system once the sphere is released?
Solutions
genius_generous answered 2 years agoRelated Solutions
An object is formed by attaching a uniform, thin rod with a massof mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 6.98 kg and length L = 5.04 m to a uniform
sphere with mass ms = 34.9 kg and radius R = 1.26 m.
Note ms = 5mr and L = 4R.1)What is the moment of inertia of the object about an axis at the
left end of the rod? kg-m22)If the object is fixed at the left end of the rod, what is the...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 6.67 kg and length L = 5.4 m to a uniform sphere
with mass ms = 33.35 kg and radius R = 1.35 m. Note
ms = 5mr and L = 4R.
1) What is the moment of inertia of the object about an axis at
the left end of the rod?
2) If the object is fixed at the left end of the...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 6.64 kg and length L = 5.36 m to a uniform
sphere with mass ms = 33.2 kg and radius R = 1.34 m.
Note ms = 5mr and L = 4R.
a) What is the moment of inertia of the object about an axis at
the left end of the rod?
b) If the object is fixed at the left end of the...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 6.86 kg and length L = 4.8 m to a uniform sphere with mass
ms = 34.3 kg and radius R = 1.2 m. Note ms = 5mr and L = 4R. 1)
What is the moment of inertia of the object about an axis at the
left end of the rod?
1)What is the moment of inertia of the object about an axis...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 7.25 kg and length L = 5.56 m to a uniform
sphere with mass ms = 36.25 kg and radius R = 1.39 m.
Note ms = 5mr and L = 4R.
If the object is fixed at the left end of the rod, what is the
angular acceleration if a force F = 481 N is exerted perpendicular
to the rod at the...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 7.48 kg and length L = 5.04 m to a uniform
sphere with mass ms = 37.4 kg and radius R = 1.26 m.
Note ms = 5mr and L = 4R.
1. What is the moment of inertia of the object about an axis at
the left end of the rod?
2. If the object is fixed at the left end of the...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 7.04 kg and length L = 5.16 m to a uniform sphere with mass
ms = 35.2 kg and radius R = 1.29 m. Note ms = 5mr and L = 4R.
1)What is the moment of inertia of the object about an axis at
the left end of the rod?
2) If the object is fixed at the left end of the rod,...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 7.25 kg and length L = 5.56 m to a uniform
sphere with mass ms = 36.25 kg and radius R = 1.39 m.
Note ms = 5mr and L = 4R.
1)What is the moment of inertia of the object about an axis at
the left end of the rod?
3) What is the moment of inertia of the object about an axis...
An object is formed by attaching a uniform, thin rod with a mass of mr =...
An object is formed by attaching a uniform, thin rod with a mass
of mr = 7.1 kg and length L = 5.28 m to a uniform sphere with mass
ms = 35.5 kg and radius R = 1.32 m. Note ms = 5mr and L = 4R.
I have the first couple questions right, but I can't figure out
the next one.
The moment of inertia of the object about an axis at the left
end of the rod...
A pendulum is constructed from a thin, rigid, and uniform rod with a small sphere attached...
A pendulum is constructed from a thin, rigid, and uniform rod
with a small sphere attached to the end opposite the pivot. This
arrangement is a good approximation to a simple pendulum (period =
5.87 s), because the mass of the sphere (lead) is much greater than
the mass of the rod (aluminum). When the sphere is removed, the
pendulum is no longer a simple pendulum, but is then a physical
pendulum. What is the period of the physical pendulum?
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