Two objects are placed in a room with a temperature of 20C. ...

[Themember4]

Two objects are placed in a room with a temperature of 20C. Object A has a temperature of 70C, while object B has a temperature of 140C. They have the same emissivity, but different areas.
 
  What should the ratio of the area of object A to that of object B be if the net power emitted by both objects is the same? A) 2.0
  B) 3.4
  C) 5.2
  D) 17
  E) 21

Question 2

A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. A 140-N force is applied to the box. What is the frictional force on the box?
 
  What will be an ideal response?

[31809pancho]

Answer to Question 1

B

Answer to Question 2

140 N

[Themember4]

Thanks for the timely response, appreciate it

[meow1234]

YES! Correct, THANKS for helping me on my review