QI: Convert to SI units, using any convenient prefix like u, m, e, k, M, G, etc. Show how youdid it, displaying all the needed conversion factors that you used, with their units.a) 1.00 dayb) 65 miles/hourQ2: A long freight train travelling at 120 km/h (towards the cast on a straight track) needs adistance of 1.6 km to brake to a stop.a) (6) Find the acceleration that is required, in m/s (also give its dircction).b) (6) How much time does it take for the train to stop?Q3: A car is accelerated from rest to a velocity of 66 km/h over a distance of 2000 m. (a) Howlong did the acceleration last? (b) Calculate the acceleration.Q4:1) Find the value of x that makes a perpendicular with b ifa =i+j+3k. ,b= 2i + 7j - xk2) Find the angle between e and d whenc= 3i + 2j - 3k. ,d=i+ 4j +k

Answered: Image /qna-images/answer/f5ca02ea-9448-4d14-b40e-8eec99c9a484.jpg

QI: Convert to SI units, using any convenient prefix like u, m, c, k, M, G, etc. Show how you did it, displaying all the needed conversion factors that you used, with their units. a) 1.00 day b) 65 miles/hour

QI: Convert to SI units, using any convenient prefix like u, m, c, k, M, G, etc. Show how you did it, displaying all the needed conversion factors that you used, with their units. a) 1.00 day b) 65 miles/hour

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter9: Mass And Mass-related Variables In Engineering

Section: Chapter Questions

Problem 32P

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Concept explainers

Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.

Question

QI: Convert to SI units, using any convenient prefix like u, m, e, k, M, G, etc. Show how you
did it, displaying all the needed conversion factors that you used, with their units.
a) 1.00 day
b) 65 miles/hour
Q2: A long freight train travelling at 120 km/h (towards the cast on a straight track) needs a
distance of 1.6 km to brake to a stop.
a) (6) Find the acceleration that is required, in m/s (also give its dircction).
b) (6) How much time does it take for the train to stop?
Q3: A car is accelerated from rest to a velocity of 66 km/h over a distance of 2000 m. (a) How
long did the acceleration last? (b) Calculate the acceleration.
Q4:
1) Find the value of x that makes a perpendicular with b if
a =i+j+3k. ,
b= 2i + 7j - xk
2) Find the angle between e and d when
c= 3i + 2j - 3k. ,
d=i+ 4j +k

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