What happens to metal when in contact with an acid?

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Arrange the images in order to show how lake-effect snow occurs.