(a)[2]
Define what is meant by simple harmonic motion.
(b(i))[2]
Explain how the expression shows that the tube is moving with simple harmonic motion.
(b(ii))[4]
A tube with cross-sectional area $4.5\ \text{cm}^2$ is floating in water of density $1.0 \times 10^{3}\ \text{kg m}^{-3}$. Calculate the mass of the tube that would produce oscillations of frequency $1.5\ \text{Hz}$.
(i)[2]
Explain how the expression allows you to deduce that the tube is moving with simple harmonic motion.
(ii)[4]
A tube with cross-sectional area $4.5\text{ cm}^2$ is floating in water of density $1.0 \times 10^3\text{ kg m}^{-3}$. Calculate the mass of the tube that would produce oscillations of frequency $1.5\text{ Hz}$.