If the wavelength doubles and the speed stays the same what happens to the frequency? Tell me how you got the answer please!

Which situation will produce the greatest change of momentum

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 best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus