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Let
b. Draw a coordinate system and on it show vectors
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Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
- (a) If AF=BF , can we conclude A=B ? (b) If AF=BF , can we conclude A=B ? (c) If FA=BF , can we conclude A=B ? Why or why not?arrow_forwardA delivery man starts at the post office, drives 40 km north, then 20 km west, then 60 km northeast, and finally 50 km north to stop for lunch. Use the analytical method to determine the following: (a) Find his net displacement vector. (b) How far is the restaurant from the post office? (c) If he returns directly from the restaurant to the post office, what is his displacement vector on the return trip? (d) What Is his compass heading on the return trip? Assume the +x-axis is to the east.arrow_forwardA chameleon is resting quietly on a lanai screen, waiting for an insect to come by. Assume the origin of a Cartesian coordinate system at the lower left-hand corner of the screen and the horizontal direction to the right as the +x -direction. If its coordinates are (2.000 m, 1.000 m), (a) how far is it from the corner of the screen? (b) What is its location in polar coordinates?arrow_forward
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- Moving to another question will save this response. Question 6 Given two vectors A = 7i+ 5j - 2k, and B = 3i – 10j + 6k, what is the angle between the two vectors? O A. 112.7° B. 116.3° O C. 118 4° O D. 115° O E. None of these Moving to another question will save this response.arrow_forwardA person travels 45 m east and then 65 m in the direction that is 28 degrees from the positive x axis. a. What is the magnitude of this persons displacement? b. What is the angle of this persons displacement in degrees?arrow_forwardSketch the coordinate axes and then include the vectors u, v, and u× v as vectors starting from the origin. u=2i, v=7j Which of the following graphs contains u, v, and ux v? O A. B. O C. uxv +X +x +z u +z u +y uxv D. +X +X uxv V +Z +z u +y uxvarrow_forward
- A student bikes to school by traveling first N = 1.00 miles north, then W = 0.400 miles west, and finally S = 0.200 miles south. a. If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, what distance would the bird cover? b. Finally, find ϕ, the angle north of west of the path followed by the bird.arrow_forwardVector A has a magnitude 28 and points to the east. Vector B has a magnitude 19 and points north. a. What is the magnitude of the vector sum A and B? b. What is the direction of the vector sun of A and B in degrees?arrow_forwardThree vectors A, B and C add together to yield zero, i.e. A + B + C = 0. The vectors A and C point in opposite directions and their magnitudes are related by the expression: A = 2C. Which one of the following conclusions is correct? A. A and B have equal magnitudes and point in opposite directions. B. B and C have equal magnitudes and point in the same direction. C. A and B point in the same direction, but A has twice the magnitude of B. OD. B and C point in the same direction, but C has twice the magnitude of B. E. A and Barrow_forward
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