23. A vector quantity must be described with a magnitude and: 24. Which of the following would be different for the same person on Earth versus the moon? 25. A quantity that possesses only a magnitude but has no particular direction associated with it is called a: 26. A 3 N force vector points up and to the right, forming an angle of 45 with the horizontal. Another 3 N vector points up and to the left, also 45 above the horizontal. Which of the following is the direction of the sum of these two vectors? 27. Which of the following would have the largest horizontal force component? 28. In which of the following directions does the cross product of two vectors A and B point? 29. Which of the following is not a scalar quantity? 30. Which of the following equations represents the relationship between the sides a and b of a right triangle and the hypotenuse r