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 56 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
Thanks for the timely response, appreciate it

parshano

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

There is an inherent power differential between massage therapists and their clients. There is an inherent power differential between massage therapists and their clients.
The Fukushima Daiichi power plant The Fukushima Daiichi power plant
Exponential Function vs. Power Function Exponential Function vs. Power Function
Politics, Power and the Common Good: An Introduction to Political Science, 5/E Politics, Power and the Common Good: An Introduction to Political Science, 5/E
Finding the derivative using the power rule - Solutions Finding the derivative using the power rule - Solutions
Physics: Power, Energy and Time Physics: Power, Energy and Time
Video: Generalized life cycles for plants and animals Animation

For a complete list of videos, visit our video library