Why is it that a whole orange will float on water but a peeled one will sink

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Energy flows from the producer level to the level. is called