Question: please answer all questions below, no explanation is needed, will rate helpful Question 1? {1 point] I-u Vectors [4, -4, E] and [5, k. 21:]

please answer all questions below, no explanation is needed, will rate helpful

Question 1? {1 point] I-u Vectors [4, -4, E] and [5, k. 21:] are perpendicular. What. is the value of k? Question 13 {1 point] -u Find the magnitude of the resultant of the following four forces: 9N north, 5N south, ?N east and ICIN west. Question 19 {1 point] all An airplane heads due south with an air speed of 1am kmrh. Measurements made from the ground indicate that the plane's ground speed is 11m kmr'h at 15 east of south. Find the wind speed. 0 291 mm 0 153 mm 0 1n kmfh E 21125 kmfh

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