Concept explainers
a.
Addition of expression with correct significant numbers.
a.
Answer to Problem 110A
Addition of the given expression with correct significant figure is
Explanation of Solution
Given :
Expression is given as,
Formula used :
When two numbers are added then number of significant in their addition is equal maximum number of significant figure in the given expression.
Calculation:
In the given expression maximum significant is 3.
Therefore, in addition of the expression maximum significant figure will be3.
b.
Addition of expression with correct significant numbers.
b.
Answer to Problem 110A
Addition of the given expression with correct significant figure is 1.678 km.
Explanation of Solution
Given :
Expression is given as ;
Formula used :
When two numbers are added then number of significant in their addition is equal maximum number of significant figure in the given expression.
Calculation:
In the given expression maximum significant is 4.
Therefore, in addition of the expression maximum significant figure will be 4.
c.
Subtraction of expression with correct significant numbers.
c.
Answer to Problem 110A
Subtraction of the given expression with correct significant figure is 128.57 kg.
Explanation of Solution
Given :
Expression is given as
Formula used :
When two numbers are subtracted then number of significant in their subtraction is equal maximum number of significant figure in the given expression.
Calculation :
In the given expression maximum significant is 4.
Therefore, in subtraction of the expression maximum significant figure will be 4.
d.
Multiplication of expression with correct significant numbers.
d.
Answer to Problem 110A
Multiplication of the given expression with correct significant figure is 12.3 N.
Explanation of Solution
Given :
Expression is given as,
Formula used :
When two numbers are multiplied then number of significant in their multiplication is equal maximum number of significant figure in the given expression.
Calculation:
In the given expression maximum significant is 3.
Therefore, in multiplication of the expression maximum significant figure will be 3.
e.
Division of expression with correct significant numbers.
e.
Answer to Problem 110A
Division of the given expression with correct significant figure is
Explanation of Solution
Given :
Expression is given as
Formula used :
When two numbers are divided then number of significant in their division is equal maximum number of significant figure in the given expression.
Calculation:
In the given expression maximum significant is 2.
Therefore, in division of the expression maximum significant figure will be 2.
Chapter 5 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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