[Answered] Which of the following would be the best radiator of thermal energy? A) a shiny surface B) a ...

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Author Question: Which of the following would be the best radiator of thermal energy? A) a shiny surface B) a ... (Read 41 times)

joesmith1212

Hero Member
Posts: 549

on: Jul 27, 2018

Which of the following would be the best radiator of thermal energy?

A) a shiny surface
B) a perfectly white surface
C) a perfectly black surface
D) a metallic surface
E) styrofoam

Question 2

A boy jumps at a speed of 20.0 m/s at an angle of 25.0 above the horizontal. What is the horizontal component of the boy's velocity?

A) 18.1 m/s
B) 15.6 m/s
C) 8.5 m/s
D) 12.6 m/s
E) 20.0 m/s

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Marked as best answer by a Subject Expert

JYan

Sr. Member
Posts: 331

Reply #1 on: Jul 27, 2018

Answer to Question 1

C

Answer to Question 2

A

joesmith1212

Hero Member
Posts: 549

Reply #2 on: Jul 27, 2018

Thanks

JYan

Sr. Member
Posts: 331

Reply #3 on: Jul 27, 2018

Welcome

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Author Question: Which of the following would be the best radiator of thermal energy? A) a shiny surface B) a ... (Read 41 times)

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