shristithapa12 shristithapa12

27-07-2021
Physics

contestada

A simple machine has efficiency 90%. What does it mean? No machine has 109 efficiency,why?

Respuesta :

manjaririjal4 manjaririjal4

27-07-2021

Answer:

Efficiency of a machine is 90% this means that the total energy produced to the machine only 90% is useful and given as a output.

Machines are not 100% efficient because some of the work done by a machine is used to overcome friction

Answer Link

Otras preguntas

Kellogg's begins to sell its cereals in new markets after conducting extensive marketing research. after the cereal begins to appear in these new markets, the c

Which expression is equivalent to

URGENT!! A student needs 3 pieces of wire for a science project. The second piece must be 3 times as long as the first. The third piece must be twice as long a

If research is restricted then the new discoveries made are limited which action is most likely to decrease the number of discoveries scientist can make

How were the work conditions of the factory workers in the North and lives of the slaves in the south similar?

What effect did education reformers believe public education would have on the united states

"The majority, oppressing an individual, is guilty of a crime, abuses its strength, and by acting on the law of the strongest breaks up the foundation of societ

Dally do when johnny and pony fell asleep in the lot in the outsiders?

If a scientist removed the anthers of a flower before the flower was in full bloom, what would be the likely outcome? a.the flower would not open b.the flower w

What should you record on a bibliographic card if you're using the index-card organizational system?