E. (-4m)i+ (7m)jans: A24. In the diagram, A has magnitude 12 m and B has magnitude 8 m. The a component of Ã+ Bis about:60°45°A. 5.5 mB.7.6 mC.12 mD.14 mE. 15 mans: C25. A certain vector in the ry plane has an x component of 4 m and a y component of 10 m. It isthen rotated in the ry plane so its x component is doubled. Its new y component is about:А. 20 mВ. 7.2 mC. 5.0mD. 4.5 mE. 2.2 mans: B26. Vectors Ã and B each have magnitude L. When drawn with their tails at the same point, theangle between them is 30°. The value of A ·B is:А.zeroВ. L?C. V3L2/2D. 2L2E. none of theseans: C32Chapter 3: VECTORS

Answered: Image /qna-images/answer/d2a1dd39-8149-4727-bb73-6eacbcca71fe.jpg

Answered: 24. In the diagram, A has magnitude 12…

24. In the diagram, A has magnitude 12 m and B has magnitude 8 m. The a component of A+B is about: 60° 45° A. 5.5 m В. 7.6 m 12 m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.

Question

E. (-4m)i+ (7m)j
ans: A
24. In the diagram, A has magnitude 12 m and B has magnitude 8 m. The a component of Ã+ B
is about:
60°
45°
A. 5.5 m
B.
7.6 m
C.
12 m
D.
14 m
E. 15 m
ans: C
25. A certain vector in the ry plane has an x component of 4 m and a y component of 10 m. It is
then rotated in the ry plane so its x component is doubled. Its new y component is about:
А. 20 m
В. 7.2 m
C. 5.0m
D. 4.5 m
E. 2.2 m
ans: B
26. Vectors Ã and B each have magnitude L. When drawn with their tails at the same point, the
angle between them is 30°. The value of A ·B is:
А.
zero
В. L?
C. V3L2/2
D. 2L2
E. none of these
ans: C
32
Chapter 3: VECTORS

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