2. Calculate the wavelength and energy of an emission of gamma radiation with frequency 2x10
Hz.

List the path of the respiratory system

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions