Why is efficiency of a machine is always less than 100% ?
Category: Mechanical Physics
Mechanical physics is a branch of physics that deals with the motion of material objects under the influence of forces.
Teachers Of Physics Latest Questions
A girl carries 20 litres in a Jerry can on her head and walks for 200 metres on a horizontal level ground. Explain why the girl does no work (Assume air resistance is negligible).
It is observed that a vehicle which has a door at the rear side gathers more dust inside when moving at high speed on a dusty road with the door open than the one which has an open door on ...
HerbertBegginer
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.
Briefly explain how electric locomotives achieve their performance.