EBK THINKING LIKE AN ENGINEER
EBK THINKING LIKE AN ENGINEER
4th Edition
ISBN: 8220103633512
Author: OHLAND
Publisher: PEARSON
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Chapter 7, Problem 1ICA

Express the following values using scientific notation, engineering notation, and using an appropriate SI prefix such that there are only one, two, or three digits shown to the left of the decimal

Standard Scientific Engineering With Prefix
(a) 389,589,000 joules [J]      
(b) 0.0000000008 pascals [Pa]      
       

(a)

Expert Solution
Check Mark
To determine

Express the given standard value 389,589,000J using an appropriate scientific notation, engineering notation and SI prefix.

Answer to Problem 1ICA

The given standard value 389,589,000 J is expressed in appropriate scientific notation, engineering notation and with SI prefix as follows.

StandardScientificEngineeringWith Prefix
389,589,000 joules [J]389589×108J389.589×106J389.589MJ

Explanation of Solution

Given data:

The standard value is 389,589,000J.

Formula used:

Consider the general Scientific notation as,

#.###×10N (1)

Here,

# is single digit to the left of the decimal point which is the most significant nonzero digit,

N is an integer, and

10N is provide to locate the true position of the decimal point.

Consider the general Engineering notation as,

###.###×10M (2)

Here,

M is an integer multiple of 3, and

# is the number of digits to the left of the decimal point which is one, two, or three as required to yield a power of 10 that is indeed a multiple of 3.

Calculation:

The given standard value in Joules is,

Standard value=389,589,000J

Convert the value into scientific notation using the expression in equation (1) as follows,

389,589,000J=3.89589000×108J=3.89589×108J

Convert the value into engineering notation using expression equation (2) as follows,

389,589,000J=389.589000×106J=389.589×106J (3)

Consider the SI prefixes.

1Mega=1M=106

Convert the standard value into SI prefixes using the equation (3).

389,589,000J=389.589×(1 M)J{1Mega=1M=106}=389.589 MJ

Conclusion:

Hence, the given standard value 389,589,000 J is expressed in the appropriate scientific notation, engineering notation and with SI prefixes as follows.

StandardScientificEngineeringWith Prefix
389,589,000 joules [J]389589×108J389.589×106J389.589MJ

(b)

Expert Solution
Check Mark
To determine

Express the given standard value 0.0000000008Pa using an appropriate scientific notation, engineering notation and SI prefix.

Answer to Problem 1ICA

The given standard value 0.0000000008Pa is expressed in appropriate scientific notation, engineering notation and with SI prefix as follows.

StandardScientificEngineeringWith Prefix
0.0000000008 pascals [Pa]8.0×1010Pa800.0×1012Pa800.0pPa

Explanation of Solution

Given data:

The standard value is 0.0000000008Pa.

Calculation:

The given standard value in Pascal is,

Standard value=0.0000000008Pa

Convert the value into scientific notation using the expression in equation (1) as follows,

0.0000000008Pa=8.0×1010Pa

Convert the value into engineering notation using expression in equation (2) as follows,

0.0000000008Pa=800.0×1012Pa (4)

Consider the SI prefixes.

1pico=1p=1012

Convert the standard value into SI prefixes using equation (4).

0.0000000008Pa=800.0×1012Pa=800.0(1p)Pa                     {1pico=1p=1012}=800.0pPa

Conclusion:

Hence, the given standard value 0.0000000008Pa is expressed in the appropriate scientific notation, engineering notation and with SI prefix as follows.

StandardScientificEngineeringWith Prefix
0.0000000008 pascals [Pa]8.0×1010Pa800.0×1012Pa800.0pPa

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Chapter 7 Solutions

EBK THINKING LIKE AN ENGINEER

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