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Author Question: Conventional automobile efficiencies cannot conceivably be higher than about 25, even with perfect ... (Read 102 times)

FButt

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on: Jul 29, 2018
Conventional automobile efficiencies cannot conceivably be higher than about 25, even with perfect engineering. This is due to
 
  A) the law of conservation of energy.
  B) frictional loses inside the car plus unburned hydrocarbons.
  C) the second law of thermodynamics.
  D) road friction.
  E) air resistance plus road friction.

Question 2

Roughly how many different elements are there?
 
  A) 1000
  B) 20
  C) many more than 1000
  D) 100
  E) 4


Pswine

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


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FButt

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Reply #2 on: Jul 29, 2018
TY


Pswine

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Reply #3 on: Jul 29, 2018
You're welcome


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