On a cold day, when the air temperature is 0C, you empty your ...

[Mimi]

On a cold day, when the air temperature is 0C, you empty your lungs and take a deep breath, filling your lungs with 4.2 L of air.
 
  If you hold your breath until the temperature of the air in your lungs reaches 37C, what is the volume of the air in your lungs at that point, assuming the pressure does not change?
  A)
 
  4.6 L
 
  B)
 
  4.4 L
 
  C)
 
  5.0 L
 
  D)
 
  4.8 L
 
  E)
 
  5.2 L

Question 2

The left-hand end of a glass rod is ground to a spherical surface. The glass has index of refraction 1.50. A small object 4.00 mm tall is placed on the axis of the rod, 37.0 cm to the left of the vertex of the spherical surface.
 
  The image is formed in the rod, 50.0 cm to the right of the vertex.
  (a) What is the magnitude of the radius of curvature of the spherical surface at the end of the rod?
  (b) What is the height of the image?

[huda]

Answer to Question 1

D

Answer to Question 2

(a) 8.8 cm (b) 3.60 mm

[Mimi]

TY

[huda]

You're welcome