If a tsunami is traveling at 270m/s with a wavelength of 450,000m, what is the frequency of the wave?

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

When using the scientist method, which step comes last?