Awave of wavelength 52 cm travels with frequency 400 hz. what is the speed of the wave? show all work

Which of the following would not be taken into consideration when describing the quality of a sound

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?