A dot whistle is designed to provide a sound with a frequency beyond which can be heard by humans. If a particular whistle produces a sound with a frequency of 25000 hz, what is the sounds wavelength? Assume the speed of sound in the air is 332 m/s.

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms