Calculate the total kinetic energy of a tennisball of mass 60.0g that is spinning at a rate of four revolutions per second as it moves through the air with a translational speed of 10.0ms^-1? Show work

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

What are the north and south poles of a solenoid change with?

What do we mean by the event horizon of a black hole?