An airplane is flying in still air with an airspeed of275milesper hour. The plane is climbing at an angle of18 degrees. Find the rate at which the plane is gaining altitude.

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.