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

Author Question: A certain electric furnace consumes 24 kW when it is connected to a 240-V line. What is the ... (Read 13 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Jul 29, 2018
A certain electric furnace consumes 24 kW when it is connected to a 240-V line. What is the resistance of the furnace?
 
  A) 1.0 k
  B) 10
  C) 2.4
  D) 0.42
  E) 100

Question 2

A photocathode has a work function of 2.8 eV. The photocathode is illuminated with monochromatic radiation whose photon energy is 4.0 eV. The threshold frequency for photoelectron production is closest to:
 
  A) 6.8  1014 Hz
  B) 2.9  1014 Hz
  C) 7.7  1014 Hz
  D) 8.6  1014 Hz
  E) 9.7  1014 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

annierak

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


Arii_bell

  • Hero Member
  • *****
  • Posts: 596
Reply #2 on: Jul 29, 2018
Thanks


annierak

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Line analysis of Gustave Caillebotte, Place de l'Europe on a Rainy Day. Line analysis of Gustave Caillebotte, Place de l'Europe on a Rainy Day.
A star link-type network where all of the modules are connected together using splice packs. A star link-type network where all of the modules are connected together using splice packs.
A gasoline direct-injection (GDI) fuel rail and pump assembly with the electric pressure control ... A gasoline direct-injection (GDI) fuel rail and pump assembly with the electric pressure control ...
Fuel should be heard returning to the fuel tank at the fuel return line if the fuel-pump and ... Fuel should be heard returning to the fuel tank at the fuel return line if the fuel-pump and ...
The phenotypic and genotypic ratios of a dihybrid cross can be derived using a branched-line method The phenotypic and genotypic ratios of a dihybrid cross can be derived using a branched-line method
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library