Physics (AS & A Level) · May / June 2017 · Paper 11 · Question 3

The speed v of a liquid leaving a tube depends on the change in pressure ΔP and the density ρ of the liquid. The speed is given by the equation v = k (ΔP/ρ)ⁿ where k is a constant that has no units. What is the value of n?

1. A1/2
2. B1
3. C3/2
4. D2

As printed in the paper