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

Author Question: An air conditioner with a coefficient of performance of 3.50 uses 30.0 kW of power to operate. What ... (Read 47 times)

biggirl4568

  • Hero Member
  • *****
  • Posts: 551
on: Jul 29, 2018
An air conditioner with a coefficient of performance of 3.50 uses 30.0 kW of power to operate. What power is it discharging to the outdoors?
 
  A) 30.0 kW
  B) 75.0 kW
  C) 105 kW
  D) 135 kW
  E) 210 kW

Question 2

A metal having a work function of 2.8 eV is illuminated with monochromatic light whose photon energy is 3.9 eV. What is the threshold frequency for photoelectron production? (h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
 
  A) 7.6  1014 Hz
  B) 8.5  1014 Hz
  C) 2.7  1014 Hz
  D) 9.4  1014 Hz
  E) 6.8  1014 Hz
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

katara

  • Sr. Member
  • ****
  • Posts: 305
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


biggirl4568

  • Member
  • Posts: 551
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

ultraflyy23

  • Member
  • Posts: 312
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Hydroelectric Power Hydroelectric Power
The Power and Control Wheels of Abusive Relationships When one person in a relationship repeatedly ... The Power and Control Wheels of Abusive Relationships When one person in a relationship repeatedly ...
A thermostat stuck in the open position caused the engine to operate too cold. The vehicle failed ... A thermostat stuck in the open position caused the engine to operate too cold. The vehicle failed ...
The schematic of a variable valve timing control circuit, showing that battery power (+) is being ... The schematic of a variable valve timing control circuit, showing that battery power (+) is being ...
Power Grip and Precision Grip Power Grip and Precision Grip
Calculation of the inbreeding coefficient (F) Calculation of the inbreeding coefficient (F)
Video: Status Epilepticus

For a complete list of videos, visit our video library