Mathematics, 02.09.2020 20:01 Lydiaxqueen
28. Which of the following is true regarding the relationship between work and efficiency of a machine? a. Since work output is always less than work input, efficiency is always less than 100% b. Since friction increases work output, friction increases the efficiency of machines. C. Since work input and work output are always equal, efficiency is always 100% d. Since efficiency of a machine is determined by the ratio of work output to work input, the greater difference results in greater efficiency.
Answers: 2
Mathematics, 21.06.2019 21:00, alexahrnandez4678
Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.
Answers: 1
Mathematics, 21.06.2019 22:00, jamarstand
What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)
Answers: 1
28. Which of the following is true regarding the relationship between work and efficiency of a machi...
English, 09.06.2021 16:00
Social Studies, 09.06.2021 16:00
Mathematics, 09.06.2021 16:00
English, 09.06.2021 16:00
Arts, 09.06.2021 16:00