5*) Find the angular velocity of the Earth due to its daily
rotation and express it in radians per second. Then use it, and a
model of the Earth as a solid sphere of mass M
=
5.97 × 1024 kg and radius R
= 6.37 × 106 m, to estimate the angular momentum of the Earth due
to its rotation around its axis. (The result should be of the order
of 1033 kg m2/s. This is called the Earth’s “intrinsic” angular
momentum, as opposed to its “orbital” angular momentum due to its
motion around the Sun.)
Homework Answers
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5*) Find the angular velocity of the Earth due to its daily
rotation and express it...
10*) The Sun has approximate radius 7×108 m, and rotates around its axis once every 27...
10*) The Sun has approximate radius 7×108 m, and rotates around
its axis once every 27 days. a) Find its angular velocity in rad/s,
and (assuming it is a uniform sphere) write a formula for its
angular momentum expressing it in terms of its mass M (you do not
need to substitute a value for M). b) Suppose the Sun were to
collapse to a neutron star, which is a much denser state, without
losing any mass and without being...
Results given on page 300 TABLE 12.2 Moments of inertia of objects with uniform density Object...
Results given on page 300 TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Object and axis Picture Thin rod, about center | Cylinder or disk, about center MR ML2 Thin rod, about end ML Cylindrical hoop. MR2 about center | Solid sphere, about diameter Маг Plane or slab, about center Ma2 MR Plane or slab, about edge Ma2 Spherical shell, about diameter MR2 1. b. A very thin, straight, uniform rod has a length...
Results given on page 300 TABLE 12.2 Moments of inertia of objects with uniform density Object...
Results given on page 300 TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Object and axis Picture Thin rod, about center MCylinder or disk, MR 2 about center Thin rod about end ML Cylindrical hoop, MR2 about center Plane or slab, about center Маг | Solid sphere, about RMR2 diameter Plane or slab, about edge 1Ma2 I spherical shell, about diameter MR2 5. Again, use the table of integration results on page 300 of...
Results given on page 300: TABLE 12.2 Moments of inertia of objects with uniform density Object...
Results given on page 300: TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Picture Object and axis Thin rod about center ML2 Cylinder or disk MR about center Thin rod about end ML Cylindrical hoop, MR2 about center Plane or slab, about center Маг | Solid sphere, about diameter MR2 Plane or slab about edge MaSpherical shell, about diameter MR2 2. b. A very thin, flat, uniform slab has a width of W, a...
What is the angular kinetic energy of the Earth due to its orbit around the sun?...
What is the angular kinetic energy of the Earth due to its orbit around the sun? In Homework 10, you found the two main angular velocities of the Earth: one due to the Earth's motion around the sun, and one due to its rotation about its own axis. Now let's figure out the energy and momentum associated with that motion. IVO ALV O a ? For the purposes of this problem, treat the Earth as a solid, uniform sphere with...
Results given on page 300: TABLE 12.2 Moments of inertia of objects with uniform density Object...
Results given on page 300: TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Object and axis Picture Thin rod about center Cylinder or disk, ML MR2 about center Thin rod about end ML Cylindrical hoop, MR2 about center Plane or slab, about center Solid sphere, about diameter 3MR2 Plane or slab, about edge Ma Spherical shell, about diameter MR2 4. Use the results on page 300 of the textbook to do the following: A...
A uniform thin rod of length 0.95 m and mass 1.2 kg lies in a horizontal...
A uniform thin rod of length 0.95 m and mass 1.2 kg lies in a horizontal plane and rotates in that plane about a pivot at one of its ends. The rod makes one rotation every 0.39 second and rotates clockwise as viewed from above its plane of rotation. A)Find the magnitude of the rod’s angular momentum about its rotation axis, in units of kgm^/s. b) find the rotational kinetic energy, in joules, of the rod described in part (a)....
A uniform thin rod of length 0.97 m and mass 2.2 kg lies in a horizontal...
A uniform thin rod of length 0.97 m and mass 2.2 kg lies in a horizontal plane and rotates in that plane about a pivot at one of its ends. The rod makes one rotation every 0.29 second and rotates clockwise as viewed from above its plane of rotation. the magnitude of the rod's angular momentum about its rotation axis, is 14.95 kg m2/s. 1. choose the correct direction of the angular momentum vector for the situation described above a....
(a) Calculate the angular momentum of Earth that arises from its spinning motion on its axis,...
(a) Calculate the angular momentum of Earth that arises from its spinning motion on its axis, treating Earth as a uniform solid sphere. J · s (b) Calculate the angular momentum of Earth that arises from its orbital motion about the Sun, treating Earth as a point particle. J · s
(a) Calculate the angular momentum of Earth that arises from its spinning motion on its axis,...
(a) Calculate the angular momentum of Earth that arises from its spinning motion on its axis, treating Earth as a uniform solid sphere. J ·s (b) Calculate the angular momentum of Earth that arises from its orbital motion about the Sun, treating Earth as a point particle. J ·s
10*) The Sun has approximate radius 7×108 m, and rotates around
its axis once every 27 days. a) Find its angular velocity in rad/s,
and (assuming it is a uniform sphere) write a formula for its
angular momentum expressing it in terms of its mass M (you do not
need to substitute a value for M). b) Suppose the Sun were to
collapse to a neutron star, which is a much denser state, without
losing any mass and without being...
Results given on page 300 TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Object and axis Picture Thin rod, about center | Cylinder or disk, about center MR ML2 Thin rod, about end ML Cylindrical hoop. MR2 about center | Solid sphere, about diameter Маг Plane or slab, about center Ma2 MR Plane or slab, about edge Ma2 Spherical shell, about diameter MR2 1. b. A very thin, straight, uniform rod has a length...
Results given on page 300 TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Object and axis Picture Thin rod, about center MCylinder or disk, MR 2 about center Thin rod about end ML Cylindrical hoop, MR2 about center Plane or slab, about center Маг | Solid sphere, about RMR2 diameter Plane or slab, about edge 1Ma2 I spherical shell, about diameter MR2 5. Again, use the table of integration results on page 300 of...
Results given on page 300: TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Picture Object and axis Thin rod about center ML2 Cylinder or disk MR about center Thin rod about end ML Cylindrical hoop, MR2 about center Plane or slab, about center Маг | Solid sphere, about diameter MR2 Plane or slab about edge MaSpherical shell, about diameter MR2 2. b. A very thin, flat, uniform slab has a width of W, a...
What is the angular kinetic energy of the Earth due to its orbit around the sun? In Homework 10, you found the two main angular velocities of the Earth: one due to the Earth's motion around the sun, and one due to its rotation about its own axis. Now let's figure out the energy and momentum associated with that motion. IVO ALV O a ? For the purposes of this problem, treat the Earth as a solid, uniform sphere with...
Results given on page 300: TABLE 12.2 Moments of inertia of objects with uniform density Object and axis Picture Object and axis Picture Thin rod about center Cylinder or disk, ML MR2 about center Thin rod about end ML Cylindrical hoop, MR2 about center Plane or slab, about center Solid sphere, about diameter 3MR2 Plane or slab, about edge Ma Spherical shell, about diameter MR2 4. Use the results on page 300 of the textbook to do the following: A...
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