abbytristan4368 abbytristan4368

02-01-2018
Physics

contestada

A heat engine exhausts 8900 j of heat while performing 2800 j of useful work. part a what is the efficiency of this engine?

Respuesta :

samuraijack samuraijack

02-01-2018

Given: Heat Qout means useful work = 2800 J

Heat Qin = 8900 J

Required; Efficiency = ?

Formula: Efficiency = Qout/Qin = x 100%

= 2800 J/8900 J = 0.3146 X 100 %

Efficiency = 31.46%

Answer Link

Otras preguntas

you spent $25 at the store. you bought a book for $8.50 and pencils for $.25 each. how many pencils did you buy?

Kara is running a marathon. After 2 hours, Kara has run 13 miles. After 4 hours, Kara has run 26 miles. What is her speed, in miles per hour?

A car starts from rest and travels for 4.0s with a uniform acceleration of + 1.3m/s^2. The driver then applies the brakes, causing a uniform acceleration of - 1

There are two temples, one on each bank of a river, just opposite to each other. One is 54m high. From the top of this temple angle of depression of the top and

Quick Math Question for 50 Points! Anybody willing to help? If so, brainliest plus huge thanks! :D Eight less than the product of three and a number is the same

100° 100⁰ X = ??????

PLEASE HELP!! Whats the lifestyle or entertainment in The Odyssey? (I need it for a newspaper project so please answer w a good explanation)

1.07 x 104 -3.38 × 10³

PLEASE HURRY FAST!!! Jim is building a pen for his puppy. His puppy has an area of 127 square feet. Which is the best estimate for the number of feet of fencing

you spent $25 at the store. you bought a book for $8.50 and pencils for $.25 each. how many pencils did you buy?