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Chapter 3: Q. 2 (page 77)
If Can For each, show how or explain why not
can be equal to But cannot be greater than
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Kami is walking through the airport with her two-wheeled suitcase. The suitcase handle is tilted 40掳 from vertical, and Kami pulls parallel to the handle with a force of 120 N. (Force is measured in newtons, abbreviated N.) What are the horizontal and vertical components of her applied force?
7. Draw each of the following vectors. Then find its x - and y- components.
a. clockwise from the positive x-axis )
b. above the negative x-axis )
c. counter clockwise from the positive y-axis )
The magnetic field inside an instrument is where represents the magnetic field vector and stands for tesla, the unit of the magnetic field. What are the magnitude and direction of the magnetic field.
III The bacterium . coli is a single-cell organism that lives in the BIO gut of healthy animals, including humans. When grown in a uniform medium in the laboratory, these bacteria swim along zig-zag paths at a constant speed of . FIGURE P3.41 shows the trajectory of an . coli as it moves from point A to point E. What are the magnitude and direction of the bacterium's average velocity for the entire trip?
Can a vector have a component equal to zero and still have nonzero magnitude? Explain.
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