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

Author Question: A toaster is rated at 800 W when operating at 120 V dc. What is the resistance of its heating ... (Read 57 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
on: Jul 29, 2018
A toaster is rated at 800 W when operating at 120 V dc. What is the resistance of its heating element?
 
  A) 16
  B) 18
  C) 6.7
  D) 0.15

Question 2

A star has absolute luminosity equal to that of the sun but is 10 pc away from the Earth.
 
  By what factor will it appear dimmer than the sun? The earth is 1.5  108 km from the sun, and 1 parsec is equal to 3.09  1016 m.
  A) 2  10-9 B) 2  10-11 C) 2  10-15
   D) 2  10-13


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jessofishing

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

D


kshipps

  • Member
  • Posts: 571
Reply 2 on: Jul 29, 2018
Gracias!

irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

A pump showing regular with a pump octane of 87, plus rated at 89, and premium rated at 93. These ... A pump showing regular with a pump octane of 87, plus rated at 89, and premium rated at 93. These ...
An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ... An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ...
If an injector has the specified resistance, this does not mean that it is okay. This injector had ... If an injector has the specified resistance, this does not mean that it is okay. This injector had ...
A Receiver-Operating-Characteristic (ROC) Curve A Receiver-Operating-Characteristic (ROC) Curve
Heating the Atmosphere Heating the Atmosphere
Most Canadian seniors rated their health as good to excellent. Most Canadian seniors rated their health as good to excellent.
Video: Sperm Formation

For a complete list of videos, visit our video library