The radius of a magnesium atom is 0.160 nm. The radius of a magnesium ion is 7.2 x 10-11 m.
Explain the difference in size between the magnesium atom and magnesium ion.

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value