
Concept explainers
(a)
Given quantity as either a scalar or a
(a)

Answer to Problem 119E
Explanation of Solution
Given information: Muzzle velocity of a bullet
Concept used:Vectors are quantities that are both a magnitude and a direction and Scalars are quantities that are magnitude alone
Calculation:
muzzle velocity has both magnitude and direction
so,
(b)
Given quantity as either a scalar or a vector
(b)

Answer to Problem 119E
Explanation of Solution
Given information: Price of a company’s stock
Concept used: Vectors are quantities that are both a magnitude and a direction and Scalars are quantities that are magnitude alone
Calculation:
Price of a company’s stock only have magnitude
So, scalar quantity
(c)
Given quantity as either a scalar or a vector
(c)

Answer to Problem 119E
Explanation of Solution
Given information: Air temperature of a room
Concept used: Vectors are quantities that are both a magnitude and a direction and Scalars are quantities that are magnitude alone
Calculation:
Air temperature of a roomonly have magnitude
So, Air temperature of a roomis a scalar quantity
(d)
Given quantity as either a scalar or a vector
(d)

Answer to Problem 119E
Explanation of Solution
Given information: weight of an automobile
Concept used: Vectors are quantities that are both a magnitude and a direction and Scalars are quantities that are magnitude alone
Calculation:
weight of an automobile has both magnitude and direction
so, weight of an automobile is a vector quantity
(e)
Given quantity as either a scalar or a vector
(e)

Answer to Problem 119E
Explanation of Solution
Given information: volume of a fish tank
Concept used: Vectors are quantities that are both a magnitude and a direction and Scalars are quantities that are magnitude alone
Calculation:
volume of a fish tank only have magnitude
So, volume of a fish tank is a scalar quantity
(f)
Given quantity as either a scalar or a vector
(f)

Answer to Problem 119E
Explanation of Solution
Given information: current of a river
Concept used: Vectors are quantities that are both a magnitude and a direction and Scalars are quantities that are magnitude alone
Calculation:
current of a river has both magnitude and direction
so, current of a river is a vector quantity
Chapter 6 Solutions
Precalculus with Limits: A Graphing Approach
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