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A wave has an amplitude of .25m, a wavelength of .68m and a frequency of 3.2 hz. Find it's velocity? To solve I just used v=3.2 * .68=2.176m/s because amplitude doesn't factor into velocity. Is this right?thanks.

If a wavelength is doubled and velocity remains the same, is the frequency halved? I say "yes". If the velocity is halved and the wavelength remains the same, is the frequency halved. I say "yes" also. Am I correct?

Jack decides to borrow £720 for 1 year to buy a new computer . The APRIL is 10,5%. calculate the added interested and the total amount payable? . If jack sets up a standing order to pay the loan what will his monthly payment be ?

On an outing to the theatre the tickets are £8.50 each for every ten tickets bought you get two extra free tickets. How much would it cost if you wished 12 tickets? . A party of 26 people go to the show. How much will it cost altogether?

Thanks, drwls!

Thank you!

Thanks Steve 😊😊