Practice calculating percent error: A group of students got the following values for the speed of sound during their lab. Show numbers plugged into the percent error formula. Calculate the percent error. Then circle which groups got within the +/-5% error allowed. Group 1 got 365 m/s Group 2 got 345.1 m/s

Group 3 got 300.5 m/s Group 4 got 339 m/s CAN ANYONE PLEASE HELP ME WITH THIS

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?