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 54 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?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a
A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ... A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ...
Ford uses an inertia switch to turn off the electric fuel pump in case of an accident. Ford uses an inertia switch to turn off the electric fuel pump in case of an accident.
How to graph line equations without a table of values How to graph line equations without a table of values
Getting Connected Getting Connected
A 23 kg mass is connected to a nail on a frictionless table by a massless string 1.3 m long. ... A 23 kg mass is connected to a nail on a frictionless table by a massless string 1.3 m long. ...
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library