1
Copyright © 2015 Pearson Education, Inc. Cost Accounting, 15e (Horngren/Datar/Rajan)
Chapter 13 Pricing Decisions and Cost Management
Objective 13.1
1) Companies should only produce and sell units as long as ________.
A) there is customer demand for the product
B) the competition allows it
C) the revenue from an additional unit exceeds the cost of producing it
D) there is a generous supply of low-cost direct materials
Answer: C
Diff: 2
Objective: 1
AACSB: Analytical thinking
2) Too high a price may ________.
A) deter a customer from purchasing a product
B) increase demand for the product
C) indicate supply is too plentiful
D) decrease a competitor's market share
Answer: A
Diff: 1
Objective: 1
AACSB: Analytical thinking
3) Companies must always examine their pricing ________.
A) based on the supply of the product
1 Chapter 8 Gravitation
8.1 Newton’s Law of Gravitation
1. In 1665, the 23-year-old Isaac Newton made a basic
contribution to physics when he showed that the force that
holds Moon in its orbit is the same force that makes an apple
fall. Newton concluded that not only does Earth attract an
apple and the Moon but every body in the universe attracts
every other body; this tendency of bodies to move toward
each other is called gravitation.
2. Quantitatively, Newton proposed a
force law that we call Newton’s law of
gravitation: every particle attracts any
other particle with a gravitational
force whose magnitude is given by 221rmmGF. Here 1m and
2m are the masses of the particles, r is the distance
between them, and G is the gravitational constant, whose
value is known to be 2211/1067.6kgmNG. The directions
牛顿发现万有引力的故事英文简版
Introduction：Who was Isaac Newton?
Isaac Newton was an English physicist, mathematician, and astronomer who
is widely regarded as one of the most influential scientists in history.
Background：What was the scientific community like during Isaac
Newton's time?
During Isaac Newton's time, the scientific community was still in its early
stages. Many scientists were still focused on alchemy and other forms of
pseudoscience. However, a group of scholars known as the Royal Society
was formed in 1660 to promote scientific research and experimentation.
Discovery：How did Isaac Newton discover gravity?
Isaac Newton discovered gravity while sitting under an apple tree. As the
story goes, an apple fell from the tree and hit him on the head. This led him
to wonder why objects fall towards the ground instead of floating away into
1 Chapter 8 Gravitation
8.1 Newton’s Law of Gravitation
1. In 1665, the 23-year-old Isaac Newton made a basic
contribution to physics when he showed that the force that
holds Moon in its orbit is the same force that makes an apple
fall. Newton concluded that not only does Earth attract an
apple and the Moon but every body in the universe attracts
every other body; this tendency of bodies to move toward
each other is called gravitation.
2. Quantitatively, Newton proposed a
force law that we call Newton’s law of
gravitation: every particle attracts any
other particle with a gravitational
force whose magnitude is given by 221rmmGF. Here 1m and
2m are the masses of the particles, r is the distance
between them, and G is the gravitational constant, whose
value is known to be 2211/1067.6kgmNG. The directions
