4. a 505-turn circular-loop coil with a diameter of 15.5 cm is initially aligned so that
its plane is perpendicular to earth's magnetic field. in 2.77 ms the coil is rotated
90.0° so that its plane is parallel to earth's magnetic field. if an average emf of
0.166 vis induced in the coil, what is the value of earth's magnetic field?

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

yup its correct its: c) b b

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

this could be newton#'s law of cooling. the cooling curve is exponential