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 121 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
Excellent

Alyson.hiatt@yahoo.com

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Recombinants are meiotic output different from meiotic input Recombinants are meiotic output different from meiotic input
An Overview of Perceptual, Stimulus–Response (S-R), and Motor Learning An Overview of Perceptual, Stimulus–Response (S-R), and Motor Learning
Sensory and motor neurons Sensory and motor neurons
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 typical electric motor-driven AIR pump. This unit is on a Chevrolet Corvette and only works when ... A typical electric motor-driven AIR pump. This unit is on a Chevrolet Corvette and only works when ...
Testing motor function of cranial nerve VII - Puff cheeks Testing motor function of cranial nerve VII - Puff cheeks
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library