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

What is the effect on levels of liguid on a u-tube manometer when placed in a vacuum?

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

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

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

When I look at the tyres of a moving vehicle in a movie the look as if they are moving in the opposite direction. How can we explain this phenomenon/effect?

Suggest two methods of improving the efficiency of a machine.

the initial velocity of a body 20kg is 4m/s. how long would a constant force of 5N act on the body to double its kinetic energy