Answer to Question #166071 in Physics for ford

Question

1.      A hollow cylinder has an outer diameter of 4cm and an inside diameter of 3.85 cm and outer length of 4.85 cm

a.      What is the thickness in cm?

b.     What is the outer volume in cm³?

c.      What is the inner volume in cm³?

d.     What is the volume of the metal cylinder in cm³?

Answer 1

a)

$$s=0.5(4-3.85)=0.075\ cm$$

b)

$$V_{out}=0.25\pi(4)^2(4.85)=60.95\ cm^3$$

c)

$$V_{in}=0.25\pi(3.85)^2(4.85)=56.46\ cm^3$$

d)

$$V=60.95-56.46=4.49\ cm^3$$