Aam/No. --1.
A uniform log of wood, AB, is 9 m long and weighs 320 N. It is
supported horizontally at two points P and Q. P is 3.0 m from end
A while Q is 2.0 m from end B. Calculate the reaction (weight
supported at each of the points P and Q).

Which branches of natural science include the study of an organism that lived 10 million years ago

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e