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Author Question: An object that is giving off only infrared electromagnetic waves is giving off heat through: a. ... (Read 138 times)

evelyn o bentley

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on: Jul 28, 2018
An object that is giving off only infrared electromagnetic waves is giving off heat through:
 a. radiation.
  c. convection.
  b. conduction.
  d. visible light.

Question 2

A plane is traveling at Mach 0.980 through air at a temperature of 0C. What is the plane's speed? (Speed of sound at 0C is 331 m/s.)
 a. 314 m/s
  c. 348 m/s
  b. 324 m/s
  d. Mach number is undefined at 0C.


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elyse44

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


evelyn o bentley

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Reply 2 on: Jul 28, 2018
:D TYSM

Sarahjh

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Reply 3 on: Yesterday
Wow, this really help

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