Calculate the potential energy of 5.0g (0.005 kg) paper airplane 5.0 meters above the ground

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?