Atrain goes up a hill with a 15º incline. if the train has constant speed of 22 m/s, what are the vertical and horizontal components of the train's velocity? (remember to use the law of sine and cosines for this problem)

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.