Section 3.4 Components of a Vector and Unit Vectors 15. A vector has an x component...

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Section 3.4 Components of a Vector and Unit Vectors 15. A vector has an x component of -25.0 units and a y W component of 40.0 units. Find the magnitude and this int to Chi direction of this vector.

19.Obtain expressions in component form for the posi- Mtion vectors having the polar coordinates (a) 12.8 m, and C ar D i 150°; (b) 3.30 cm, 60.0°; and (c) 22.0 in., 215.

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P15 0 2. tan tam 625 6 o 2 5 2225, σο S7.9 180 9122-0 1 C) R-22-0 in 12.8 x Ce、(150° 1.0 9 んCr 12.8 x Sin (iso) - 22 Sin (21s 1 65 -12. 62 3.30 x Sin (60.0

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