When someone is changing a radio channel, what is being changed? a. only the frequency of waves the radio is receiving b. only the wavelength of the waves the radio is receiving c. both the frequency and wavelength of the waves the radio is receiving d. the speed of the waves the radio is receiving

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?