Asubmarine can detect an approaching enemy submarine using sonar. if a stationary submerged submarine emits a 100khz tone and receives a tone doppler shifted by 200hz, calculate the speed of the enemy submarine if the speed of sound in salt water is 1,482m/s. note: because the echo is off of a moving object, the moving object amplifies the doppler effect by a factor of 2! therefore, the speed must be cut in half. a. 1.0m/s b. 1.5m/s c.2.2m/s od.3.3m/s e. 4.4m/s

The difference between two numbers is 15. when twice the smaller number is subtracted from three times the larger number, the difference is 58.what is the larger number?

5submission this assignment is worth 20 points total. you are required to submit the following by next lab: 1. (3 points) determine the equation for the output angular velocity ω2 = θ˙ 2 as a function of θ1, ω1 = θ˙ 1 and α. you must show all your work to receive credit. 2. (2 points) use the result of problem#1 to plot ω2 over 0 ≤ θ1 ≤ 360deg with ω1 = 360deg/sec. do this for α = {10,30}deg. show the results on the same plot and properly label the axes, title, legend. for this you can use matlab or ms excel. 3. (3 points) determine the equation for the output angular acceleration ω˙ 2 and create a plot similar to the one in problem#2. 4. (10 points) submit plots of the results (ω2 and ω˙ 2) obtained from creo/mechanism and compare them to results of problem#2 and problem#3. note that you should do these comparisons for the two cases with α = {10,30}deg. 5. (2 points) provide a brief explanation of the results. did they match? what are the implications as misalignment angle increases?

The slope of a velocity time graph over any interval of time gives the during that interval