The following diagram shows a stage of a cell during mitosis. Which of the following happens to the cell during the stage shown in the diagram?

The chromosomes are replicated.
The chromosomes start to condense.
The centromere of each chromosome splits.
The centrosomes line up in the middle of the cell.

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?