Q9: A vibrating tuning fork is held over a water column with one end closed and the other open.
As the water level is allowed to fall, a loud sound is heard for water levels separated by 34 cm. If
the speed of sound in air is 340 m/s, the frequency of the tuning fork is: (***)

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

How to tell if a molecule is polar or nonpolar with electronegativity

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew