Questions from Modern Physics

Q: (a) For the thin rectangular plate shown in part (

(a) For the thin rectangular plate shown in part (d) of Table 9.2, find the moment of inertia about an axis that lies in the plane of the plate, passes through the center of the plate, and is parallel...

Q: A thin, rectangular sheet of metal has mass M and sides

A thin, rectangular sheet of metal has mass M and sides of length a and b. Use the parallel-axis theorem to calculate the moment of inertia of the sheet for an axis that is perpendicular to the plane...

Q: A thin uniform rod of mass M and length L is bent

A thin uniform rod of mass M and length L is bent at its center so that the two segments are now perpendicular to each other. Find its moment of inertia about an axis perpendicular to its plane and pa...

Q: Use Eq. (9.20) to calculate the moment

Use Eq. (9.20) to calculate the moment of inertia of a uniform, solid disk with mass M and radius R for an axis perpendicular to the plane of the disk and passing through its center.

Q: Use Eq. (9.20) to calculate the moment

Use Eq. (9.20) to calculate the moment of inertia of a slender, uniform rod with mass M and length L about an axis at one end, perpendicular to the rod.

Q: A slender rod with length L has a mass per unit length

A slender rod with length L has a mass per unit length that varies with distance from the left end, where x = 0, according to dm/dx = gx, where g has units of kg/m2. (a) Calculate the total mass of th...

Q: At t = 0 the current to a dc electric motor is

At t = 0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by

Q: The angle u through which a disk drive turns is given by

The angle u through which a disk drive turns is given by

Q: A wheel is rotating about an axis that is in the z

A wheel is rotating about an axis that is in the z-direction. The angular velocity

Q: A spring stores potential energy U0 when it is compressed a distance

A spring stores potential energy U0 when it is compressed a distance x0 from its uncompressed length. (a) In terms of U0, how much energy does the spring store when it is compressed (i) twice as much...