What is the composition of the white enamel of our teeth?

Which microorganism is used for the commercial production of citric acid?

Work done in time $t$ on a body of mass $m$ which is accelerated from rest to a speed $v$ in time $t_1$ as a function of time $t$ is given by:

If a charged particle moves unaccelerated through a region containing both electric and magnetic fields,which of the following must be true?

$A$ body of weight $64 ~N$ is pushed with just enough force to start it moving across a horizontal floor and the same force continues to act afterwards. If the coefficients of static and dynamic friction are $0.6$ and $0.4$ respectively, the acceleration of the body is (Acceleration due to gravity $= g$)

Which one of the following statements is not correct?