While doing work using a machine, one of the following phenomena is always correct.Question 6Answera.The output force is less than the input force.b.No energy is added by the machine.c.The output power is greater, equal or less than the input power.d.The output work is greater, equal or less than the input work

Person A reached the 2nd floor of a hospital by lift and person B reached the samefloor by stairs. If both their masses are the same, then the ______.(a) work done on A against the gravitational force is greater than that done on B(b) work done on B against the gravitational force is greater than that done on A(c) work done on them against the gravitational force is the same(d) power expended by both of them is the same

Which of the following best describes mechanical advantage?Question 6Answera.The conservation of work and energyb.The non-acceleration of a frame or machinec.The ratio of output force to input forced.The absolute difference between output power and input power

Multiple Choice QuestionWhen the relative cost of labor rises, a decision must be made whether to substitute and decrease the use of labor and increase the use of another resource input such as machines in order to produce the same amount of output at a lower cost. This statement describes the Blank______ effect.Multiple choice question.netresourcesubstitutionoutput

Which is the ratio of output work to input work?Multiple choice question.energyforceefficiencywork

We can safely say that total output can increase if there is a(n)Group of answer choicesincrease in the size of the labor force and a decrease in the productivity of workers.decrease in the size of capital and an increase in the productivity of machines.increase in the number of machines per worker.decrease in the number of workers per machine.