Some energy is lost to friction.
because they are not proper
becaus ethey have friction
Any mechanical action will waste energy as heat, therefore the work output is always less than the enegry input.
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
friction and entropy the production of heat with in a system
false A+
No, no machine is 100% efficient.
Energy in some form must be expended, if the machine is 100 percent efficient the work done in Joules will equal the energy input in Joules, but of course machines are never 100 percent efficient, there are always some losses.
it is not very efficientAnswerThey are 100 percent efficient.
No. Nothing is 100 percent efficient. In any situation some energy will be given off in a form that is useless to us.
Basically, almost NO physical process is 100% efficient.
at 0'kelvin