The viscosity of a fluid depends on the following factors except the?

Using venier calipers, which of the following readings gives the correct measurement for the length of a rod?

The basic principle of operation of a beam balance is------------------

In which of the following situations is friction not useful?

The diagram above illustrates the trajectory of a fired missile from point P at 250 ms-1

If the missile point Q after 40 s, calculate the distance |PQ|