Sunidhi made a study chart about changes in states of
matter.
Which headings best complete the chart?
X
melting
sublimation
Y
freezing
deposition
X: Solid Directly to Liquid
Y: Liquid Directly to Solid
OX: Liquid Directly to Solid
Y: Solid Directly to Liquid
O X: Heat Is Released
Y: Heat Is Absorbed
X: Heat Is Absorbed
Y: Heat Is Released

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?