A ring and a brick made of gold have the same density.

Two pieces of plasitic a full ring and a half ring, have the same radius and chage density. Which electric field at the center has the greater magnitude? Define your answer.

A thin ring of radius R is made of a material of density rho and Young's modulus Y . If the ring is rotated about its centre in its own plane with angular velocity omega , find the small increase in its radius.

A ring and a disc having the same mass, roll without slipping with the same linear velocity. If the kinetic energy of the ring is 8 j , Find the kinetic energy of disc (in J)

Bacterial and eukaryotic flagella have the same structure made of microtubules.

Why a hexagonal close-packed structure and a cubic close-packed structure for a given element would be expected to have the same density?

An ornament is made of gold and copper and weight 52 grams. If 2/13 of its part is copper, find the weight of pure gold in it.

A circular ring of radius a is made from a wire having resistance (lambda) per unit length. The ring is mounted on a car such that ring remains vertical. The care moves along a horizontal circle of radius R and completes n revolutions per minute. The horizontal component of earth's magnetic field be H, The emf induced in the ring is

Two wires A and B have the same cross section and are made of the same material, but the length of wire A is twice that of B . Then, for a given load

A metallic ball and highly stretched spring are made of the same material and have the same mass. They are heated so that they melt. The latent heat required