This topic contains a solution. Click here to go to the answer

Author Question: What is the required input in watts to operate a 70 efficient 3 horsepower electric motor? A) 3 ... (Read 108 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
What is the required input in watts to operate a 70 efficient 3 horsepower electric motor?
 
  A) 3 HP  746 watts/HP = 2228 watts work done input is the same as work done
  B) 3 HP  746 watts/HP = 2228 watts work done 2228 watts  0.7 = 1560- watts input
  C) 3 HP  746 watts/HP = 2228 watts work done 2228 watts work done / 0.7 = 3183 watts input
  D) The input power cannot be determined without knowing the voltage.

Question 2

How much mechanical force is required to lift a 300 pound compressor 3 feet?
 
  A) 300 pounds / 3 feet = 100 footpounds of force
  B) 300 pounds of force
  C) 300 pounds  3 feet = 900 footpounds of force
  D) Mechanical force alone will not lift the compressor.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tkempin

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

C

Answer to Question 2

C




Shelles

  • Member
  • Posts: 582
Reply 2 on: Jul 26, 2018
Thanks for the timely response, appreciate it


scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Gracias!

 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

For a complete list of videos, visit our video library