The surface area of antarctica is 132 million square

64. The surface area of Antarctica is 13.2 million square kilometers. If 1 acre is equivalent to
4047 m
2
, what is the surface area of Antarctica in acres?
A. 8.05 x 10 9 acres D. 3.26 x 10 9 acres
B. 3.26 x 10 6 acres E. 8.05 x 10 6 acres
C. 8.05 x 10
3
acres F. 3.26 x 10
3
acres
Section: 01.05 Units
65. A liter is equivalent to 33.8 fluid ounces. How many liters of gasoline are required to fill
a 21 gallon gas tank, if 1 gallon is equivalent to 128 fluid ounces?
Section: 01.05 Units
66. A major league pitcher is recorded as having thrown a 105 mph fastball. What is the
speed of the pitch in m/s? One mile is equivalent to 1609m.
Section: 01.05 Units
1-22

Chapter 01 - Introduction
1-23

Chapter 01 - Introduction
67. Acceleration has dimension [L/T
2
]. Use dimensional analysis to determine the ratio of
accelerations for car A to car B, if car A travels a given distance in half the time required by
car B.
2
Section: 01.06 Dimensional Analysis
68. Consider the ratio of the surface area of a cylinder to its volume. Assume the height is
equal to its diameter. What happens to this ratio if the diameter of the cylinder decreases by a
factor of 2?
A. Remains the same
B. Decreases by a factor of 2
C. Increases by a factor of 2
D. Decreases by a factor of 4
E. Increases by a factor of 4
Section: 01.06 Dimensional Analysis
69. Consider the ratio of the surface area of a sphere to its volume. What happens to this
ratio if the diameter of the sphere increases by a factor of 3?
Section: 01.06 Dimensional Analysis
1-24

Chapter 01 - Introduction
70. You can reason that the time required for a ball to fall is related to the height from which
it falls and to the acceleration due to gravity. Time is measured in seconds, height in meters,
and gravitational acceleration. Using dimensional analysis, determine how the time to fall
from height h compares to the time required to fall from height 2h.
Section: 01.06 Dimensional Analysis
71. What is the approximate volume of the average adult human body?
3
3
3
Section: 01.08 Approximation