Bottles of perfume sometimes have thick glass (n = 1.5) walls which give the impression the volume is larger than it is. Assume a cylindrical bottle has an inner radius of 1.0 cm and an outer radius of 2.0 cm. How thick (in cm) would the wall appear if you could see a mark on the inside surface?
a. 0.80
b. 0.51
c. 0.72
d. 80
e. 12
a
You might also like to view...
Calorimetry: How many grams of ice at -17°C must be added to 741 grams of water that is initially at a temperature of 70°C to produce water at a final temperature of 12°C. Assume that no heat is lost to the surroundings and that the container has negligible mass. The specific heat of liquid water is 4190 J/kg ? C° and of ice is 2000 J/kg ? C°. For water the normal melting point is 0°C and the heat of fusion is 334 × 103 J/kg. The normal boiling point is 100°C and the heat of vaporization is 2.256 × 106 J/kg.
Fill in the blank(s) with the appropriate word(s).
A plane has an airspeed of 142 m/s. A 30.0 m/s wind is blowing southward at the same time as the plane is flying. What must be the direction of the plane in order to move due east relative to the ground?
A) 78.1° north of east B) 11.9° north of east C) 77.8° north of east D) 12.2° north of east E) 55.3° north of east
What is the Prandtl number?
What will be an ideal response?
What is the fate of the universe? Will the universe continue to expand or will it eventually contract because of gravity?
What will be an ideal response?