Skip to main content
Ch 01: Concepts of Motion
Knight Calc - Physics for Scientists and Engineers 5th Edition
Knight Calc5th EditionPhysics for Scientists and EngineersISBN: 9780137344796Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoKnight Calc 5th EditionCh 01: Concepts of MotionProblema 28c
Capitolo 1, Problema 28c

Perform the following calculations with the correct number of significant figures.
7.662 - 7.425

Guida verificata passo dopo passo
1
Identify the number of significant figures in each value. For 7.662, there are 4 significant figures, and for 7.425, there are also 4 significant figures.
When performing subtraction, the result should be rounded to the least precise decimal place of the numbers involved. In this case, both numbers have their least precise decimal place in the thousandths place (three decimal places).
Perform the subtraction operation symbolically: 7.662 - 7.425.
Determine the result of the subtraction and ensure it is rounded to the thousandths place, as determined in step 2.
Express the final result with the correct number of significant figures, ensuring it matches the precision of the least precise decimal place.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Significant Figures

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion. Understanding significant figures is crucial for ensuring that calculations reflect the precision of the measured values.
Video consigliato:
Percorso guidato
04:44
Counting Significant Figures

Subtraction and Significant Figures

When performing subtraction, the result should be reported with the same number of decimal places as the measurement with the least number of decimal places. This rule ensures that the precision of the result is not overstated, maintaining the integrity of the data derived from the calculations.
Video consigliato:
Percorso guidato
08:22
Operations with Significant Figures

Rounding Rules

Rounding rules dictate how to adjust numbers to reflect the correct number of significant figures. Typically, if the digit to be dropped is less than five, the last retained digit remains unchanged; if it is five or greater, the last retained digit is increased by one. Proper rounding is essential for maintaining accuracy in calculations involving significant figures.
Video consigliato:
Percorso guidato
04:08
Kirchhoff's Junction Rule
Pratica correlata
Domanda del libro di testo

Estimate the average speed with which the hair on your head grows. Give your answer in both m/s and μm/hour. Briefly describe how you arrived at this estimate.

1619
views
Domanda del libro di testo

Perform the following calculations with the correct number of significant figures.

159.31 x 204.6

1775
views
Domanda del libro di testo

Perform the following calculations with the correct number of significant figures.

5.1125 + 0.67 + 3.2

1695
views
Domanda del libro di testo

Using the approximate conversion factors in Table 1.5, convert the following SI units to English units without using your calculator.

25 m/s

2115
views
Domanda del libro di testo

Perform the following calculations with the correct number of significant figures.

16.5/3.45

1636
views
Domanda del libro di testo

Compute the following numbers, applying the significant figure rules adopted in this textbook.

33.3\(\sqrt{33.3}\)

2008
views