ajccstudent1 ajccstudent1

08-06-2018
English

contestada

A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What is the efficiency of the machine?

A. 96 percent
B. 97 percent
C. 92 percent
D. 94 percent

Respuesta :

TheBusinessMan TheBusinessMan

08-06-2018

D) 94 percent is your answer. To find the efficiency you divide the amount of useful work by the amount of energy supplied.
3,760/4000 = .94 or 94%

Answer Link

Otras preguntas

One of the first steps of poetry analysis is to read a poem out loud. a. True b. False

Gary wants to read a 307 page book in ten nights. On the first night, he read 30 pages. If he wants to read the same amount each night that remains , how many p

your opinion of this ideal: With the help of technology, students will benefit greatly from studying by themselves at home.

What is one action an employer can take to lower wage levels? A. Hire only union workers. B. Hire workers with more experience. C. Replace some workers with mac

write a rabbit tale about a big bunny family

In a __________ economy, most 4es are privately owned, but the government regulates utilities, builds roads and bridges, and provides public services, such as b

The algebra mat below models the equation x+3=5

Newlands organized the known elements in 1865 by developing what theory? A. Law of Atoms B. Law of Octaves C. Law of Quartets D. Law of Triplets

Compare and contrast Roosevelt's and Truman's attitudes toward Stalin and the Soviet Union. To what extent was Truman's potential influence over the Soviet's ec

why is 1/2 of 2 equals one whole