What is the effect on levels of liguid on a u-tube manometer when placed in a vacuum?
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?
Explain why the handle of a door is placed as far as possible from the hinges. Explain why it is easier to loosen a tight nut using a spanner with a long handle than the one with a short handle.
Explain why soft iron keepers are suitable for storing magnets.
A student wearing sharp pointed heeled shoes is likely to damage a soft wooden floor. Explain.
What is the essence of an oil molecule in hydraulic machines?