A sound wave travelling in water at 1440 ms-1 has a wavelength of 0.5m determine the frequency of the wave

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

What’s #16 asking and how do i solve it?