How come in free fall you feel weightless even though gravity is pulling down on you?

What is the essence of an oil molecule in hydraulic machines?

Distingush between Bernoulli’s effect and Bernoulli’s principle.

Draw the scales of a msg showing 2.86mm for a 50 divisions msg

An arrow of mass 20g traveling horizontally strikes a block of wood of mass 1980g resting on a horizontal surface. The impact takes 0.2s before the two move together with an initial velocity of 5m/s. Calculate: a. The velocity of the ...

Give a reason why mass of a body is constant everywhere.

what is the difference between limiting and dynamic forces of friction?

Which rays are used in a TV remote?