Which describes the magnetic field that forms when a wire carries an electric current? a. it is in a line perpendicular to the wire. b.it is in a line parallel with the wire. c.it is in a cylinder around the wire. d.it is in a cylinder across the wire.

Explain why you think this diagram shows what happened to the carbon in the biodome.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

What is the increase in density of a medium due to wave travel?