michie18 michie18

18-02-2016
Physics

contestada

What is the efficiency of a device that takes in 40,000 J of heat and does 12,000 J of work while giving off 28,000 J of heat? Use and convert to a percentage. A.70% B. 57% C. 30% D. 43%

Respuesta :

AutumnHDunaway AutumnHDunaway

18-02-2016

(12,000 / 40,000) * 100 = 30

Hope this helps!!(:

Answer Link

Otras preguntas

Yall please help mee!!I need to turn this in soon.

How were the Mayan and Olmec civilizations alike?

In "The Legend of Sleepy Hollow," how does the screenwriter’s choice of setting affect the film and alter the meaning of the original text?

Stupid horse needs help A G A I N words are: Intellectual, intelligible, notice, notorious, annotate, connotation, consensus, sensational, sensible, and sentim

Write a linear function f with the values f (6) = 8 and f (9) = 3.

c) Which levels of protein structure are affected by the change in amino acids?

Need help thank you!

What is the area of the figure? 12.0 square meters 14.28 square meters 17.98 square meters 24.8 square meters

Which point is on the line described by the equation below?

Appropriate the value of 22