A sailboarder is zipping northeast across a river with a velocity of 8.3 m/sec relative to the water. The water is moving north at a velocity of 2.9 m/sec. If the angle between the relative velocity of the sailboard and the river current is 28.5 degrees, what is the resultant or true velocity of the sailboarder (relative to the surrounding land, if you like)? Draw a diagram to help figure this out. Include units in your answer (m/sec).

A jet leaves palermo, sicily, whose latitute is 38 degrees N flying due west. Eventually it returns to palermo again. Assuming that the earth has a 3960-mile radius:   a.) find the distance the jet travels b.)find the distance from palermo to the equator along the surface of the earth.  SHOW WORK AND PICTURES

please help ASAP (& pls draw a picture), thank you!

#1) Given the vectors A = (1, -3,5) and B = (6,-4, 2) find the following (make sure to use proper vector notation, you can use the given notation using parenthesis USI Just the answer from you calculator does not count, show your work. (A) The sum of A+ B. (B) The difference of A-B. (C) The magnitude of A. Report answer to 3 sig figs. (D) The dot product between A and B. (E) The cross product between A and B.