You need to measure the density of a rectangular-shaped metal block (density=mass/volume). You measure the mass using an electronic balance accurate to 1 g, and find the mass to be 132 g. You measure the three sides using a millimeter rule and find the sides to be 23.1 cm by 4.2 cm by 0.4 cm. From this you calculate the volume as 38.81cm and the density to be 3.401 g/cm³ (note: this is what your calculator shows-the numbers are not necessarily rounded to the correct place.) How many significant figures should your final answer is rounded to? O A. 1 O B. 2 О С.3 O D. 4

You need to measure the density of a rectangular-shaped metal block (density=mass/volume). You measure the mass using an electronic balance accurate to 1 g, and find the mass to be 132 g. You measure the three sides using a millimeter rule and find the sides to be 23.1 cm by 4.2 cm by 0.4 cm. From this you calculate the volume as 38.81cm and the density to be 3.401 g/cm³ (note: this is what your calculator shows-the numbers are not necessarily rounded to the correct place.) How many significant figures should your final answer is rounded to? O A. 1 O B. 2 О С.3 O D. 4

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 11PQ: CASE STUDY On planet Betatron, mass is measured in bloobits and length in bots. You are the Earth...

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