Which of the following is true about the waves?  Choose all the correct answers.

A nurse in a pediatric clinic is caring for a preadolescent child who has maintained excellent glycemic control of his type 1 diabetes mellitus during the school year. However, during a busy summer vacation, the child has experienced repeated episodes of hypoglycemia. Which statement by the child or parents indicates an understanding of this trend?

Choose all the factors involved in the formation of  marine terraces.  

c.) Determine the component of the velocity vector that is perpendicular to the plane. The x-component is:

Which condition is necessary for constructive interaction/interference of waves?

Problem 2 A plane is defined by three points, as shown in the figure.  A projectile is moving towards the plane with a velocity vector  v = (-20 i + 5 j – 5 k) m/s.  a.) Determine a unit vector that is perpendicular (normal) to the plane and pointed inwards (i.e., towards the origin).  The x-component is:

The z-component is: 

Problem 3 Point A is connected to cables AB, AC, AD, and AE.  The tension in cable AE is equal to P and the cable is parallel to the z-axis, as shown.  The strength of cable AD is 1000 lb and you are using a factor of safety of 2.  Assume that the remaining cables will not fail. The coordinates of points A, B, C, and D are below: Point A: (0, 8, 0) ft Point B: (-6, 0, 0) ft Point C: (6, 0, 0) ft Point D: (0, 17, 12) ft a.) Determine a unit vector pointing in the direction AB.  The x-component is:

b.) Draw a free body diagram of point A. c.) Determine the largest value of P that can be supported by the cable structure (lb).

For the rest of the exam assume that the answer to (a) is (-0.6 i -0.5 j -0.6245 k); note that this may or may not be the correct answer. b.) Determine the magnitude of the component of the velocity in the direction that is perpendicular to the plane (m/s); i.e., the magnitude that is in the direction of the unit vector from (a).