(c) (i)What is the importance of dimensional analysis in spite of its drawbacks?
(ii) The following measurements were taken by a student for the length of a piece of rod: 21.02, 20.99, 20.92, 21.11 and 20.69. Basing on error analysis find the true value of the length of the piece of rod and itsassociated error.
(ii) An insect is released from rest at the top of the smooth bowling ball such that it slides over the ball. Prove that it will lose its footing with the ball at an angle of about 480with the vertical.
(b) (i) What is meant by temperature of inversion?
(ii) A thermometer was wrongly calibrated as it reads the melting point of ice as -IOOC and reading a temperature of 600C in place of 500C. What would be the temperature of boiling point of water on this scale?