You measure the pressure inside a tin can when the temperature of the air inside the can is 20, 30, 40, 50, 60 and 70 .C . You plot a graph of the pressure vs the temperature. What is your "independent" variable? Select one: O a. the air pressure inside the tin can O b. the temperature of the air inside the can O c. the volume of air inside the tin can O d. the gradient of the graph O e. the air pressure on the outside of the can You use a video to create a graph of the position of Usain Bolt from the starting line vs time from the start of the race, and you get the graph shown below. 120 100 50 Position [m] 10 20 -20 2 8 10 12 Time [s] You use the graph to calculate what his position might have been at a time of 10 s. This process is known as: Select one: a. Interpolation O b. Estimation O c. Analysis O d. Linearisation O e. ExtrapolationWhich of the following statements are correct? Select one or more: C] a. The axis on which we usually plot the dependent X independent variable is determined by convention. However, this convention may be overridden by other graphing conventions. D b. By convention. the dependent variable is usually plotted on the vertical axis. D o. By convention. the dependent variable is usually plotted on the horizontal axis. D d. The variable which we choose} control the values of. is usually plotted on the vertical axis. 1:] e. Historically, the vertical axis was sometimes known as the abscissa. E] f. The dependent variable must always be plotted on the horizontal axis. If y: v'x. plotting which of the following would give a straight line graph? Select one or more: :l a. v'yvs v'x :l b. vyvsx :l c. yvsx2 :I d. yzvsxl 3 e. yzvsx :I f. yvst @ I I I The Stefan-Boltzmann Law relates the power radiated by an object (the "heat loss" via radiation), P, to the temperature of the object, T: P = A5074 According to this law, Ifthe temperature of an object is doubled, what happens to the power radiated by the object? I Select one: Pstays the same Pis multiplied by 16 Pis divided by 16 Pis halfed Pis doubled