This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A heat engine receives 7000 J of heat and loses 3000 J in each cycle. What is the efficiency of this ... (Read 107 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Jul 29, 2018
A heat engine receives 7000 J of heat and loses 3000 J in each cycle. What is the efficiency of this engine?
 
  A) 30 B) 43 C) 57 D) 70

Question 2

The radius R of a nucleus of mass number A is given by R = R0 A1/3, where R0 = 1.2  10-15 m,
 
  calculate the density of a nucleus that has contains 57 protons and 82 neutrons. The mass of a nucleon (proton or neutron) is 1.67  10-27 kg.
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


Arii_bell

  • Member
  • Posts: 596
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

smrtceo

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

The water cycle. The water cycle.
The bore and stroke of pistons are used to calculate an engine’s displacement. The bore and stroke of pistons are used to calculate an engine’s displacement.
Using a torque wrench to tighten connecting rod nuts on an engine. Using a torque wrench to tighten connecting rod nuts on an engine.
The cycle of G protein dissociation and reassociation The cycle of G protein dissociation and reassociation
How to solve any percent efficiency problem How to solve any percent efficiency problem
The carbon cycle The carbon cycle
Video: Insulin (glucose uptake by body cells), glycogenesis and lipogenesis

For a complete list of videos, visit our video library