Question

Questions 3 to 6 will help in developing an understanding of the treatment of observational uncertainties which is required in the Physics laboratories. You may need to refer to your Practical Notes or to Experimental Methods by Kirkup for a discussion of experimental errors Which of the following are correctly written? Correct those which are not. (a) 13.42t0.57 (c) 578 ± 50 (b) 0.0028+0.0002 (d) 1453 t0.1 4 (a) Find s-x+y and As in the following: (i) x-2.560.01 m (ii) x-5t 1 kg y-0.26 t 0.04 m y-200+ 10 g b) Find s-x -y and As for the values ofx and y in part (a)(i). (a) A current of 0.57t 0.05 A flows through a resistor of 10.0 +0.2. What is the voltage 5 across the resistor and the uncertainty in that voltage? Which measurement, voltage or resistance, contributes the most to the uncertainty? (Hint: consider how each measurement contributes to the relative uncertainty of the voltage) (b) A cube has a side of 87.4 t 0.2 mm. What is the uncertainty in its volume?

pls show the step clearly, ty.