Essential University Physics -Modified MasteringPhysics Access
3rd Edition
ISBN: 9780133857214
Author: Wolfson
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 49P
(a) Find the scalar product of the vectors aî + bĵ and bî – aĵ, where a and b are arbitrary constants, (b) What’s the angle between the two vectors?
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Use the definition of scalar product, a→⋅b→ = ab cos θ, and the fact that a→⋅b→ = axbx + ayby + azbz to calculate the angle between the two vectors given by a→=6.0î+6.0ĵ+6.0k̂ and b→=2.0î+8.0ĵ+4.0k̂.
Use the definition of scalar product, ?→⋅?→�→⋅�→ = ab cos θ, and the fact that ?→⋅?→�→⋅�→ = axbx + ayby + azbz to calculate the angle between the two vectors given by ?→=6.0?̂ +6.0?̂+6.0?̂�→=6.0�̂+6.0�̂+6.0�̂ and ?→=2.0?̂ +2.0?̂+3.0?̂�→=2.0�̂+2.0�̂+3.0�̂.
Two vectors in Cartesian coordinates have components A = (1, 1) and B = (2, y).
If the scalar product of A and B is 8, what is y?
Chapter 6 Solutions
Essential University Physics -Modified MasteringPhysics Access
Ch. 6.2 - Two objects are each displaced the same distance,...Ch. 6.3 - Three forces have magnitudes in newtons that are...Ch. 6.4 - For each situation, tell whether the net work done...Ch. 6.5 - Prob. 6.4GICh. 6 - Give two examples of situations in which you might...Ch. 6 - If the scalar product of two nonzero vectors is...Ch. 6 - Must you do work to whirl a ball around on the end...Ch. 6 - If you pick up a suitcase and put it down, how...Ch. 6 - You want to raise a piano a given height using a...Ch. 6 - Does the gravitational force of the Sun do work on...
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Mechanical work done (GCSE Physics); Author: Dr de Bruin's Classroom;https://www.youtube.com/watch?v=OapgRhYDMvw;License: Standard YouTube License, CC-BY