« previous next »

Author Question: A thermodynamic engine receives 7000 J of energy and loses 3000 J in each cycle. What is the ... (Read 41 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jul 29, 2018
A thermodynamic engine receives 7000 J of energy and loses 3000 J in each cycle. What is the efficiency of this engine?
 
  A) 57
  B) 30
  C) 70
  D) 43

Question 2

Monochromatic light of wavelength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern is observed at 32 from the centerline, what is the distance between the slits of the grating?
 
  A) 0.93 m
  B) 1.4 m
  C) 2.8 m
  D) 8.5 m


trampas

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Energy flows in a typical gasoline-powered car Energy flows in a typical gasoline-powered car
Locations of Sunspots Throughout the Sunspot Cycle Locations of Sunspots Throughout the Sunspot Cycle
An engine will not run if the air–fuel mixture is either too rich or too lean. An engine will not run if the air–fuel mixture is either too rich or too lean.
Renewable Energy Efforts Renewable Energy Efforts
Effect of a catalyst on activation energy Effect of a catalyst on activation energy
The energy budget The energy budget
Video: Introduction to Genetics

For a complete list of videos, visit our video library