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

Author Question: What is the required input in watts to operate a 70 efficient 3 horsepower electric motor? A) 3 ... (Read 106 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
on: Jul 26, 2018
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
Reply #1 on: Jul 26, 2018
Answer to Question 1

C

Answer to Question 2

C


Shelles

  • Member
  • Posts: 582
Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review

amit

  • Member
  • Posts: 364
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Lateral Group of Descending Motor Tracts Lateral Group of Descending Motor Tracts
Primary Motor Cortex and Seizures Primary Motor Cortex and Seizures
Milestones of Gross Motor Development in Infancy Age ranges provided are for 90% of American infant Milestones of Gross Motor Development in Infancy Age ranges provided are for 90% of American infant
Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m
Electric and butane-powered soldering guns used to make electrical repairs. Soldering guns are sold ... Electric and butane-powered soldering guns used to make electrical repairs. Soldering guns are sold ...
A Motor Neuron A Motor Neuron
Video: DNA Sequences - Dideoxy Sequencing

For a complete list of videos, visit our video library