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  1. J

    2004 Ford F-250 trailer hitch question?

    As i stated above i have a 2004 ford f-250 with a service body that has a bumper mounted to the frame rated for 500 lb tongue weight and 5000 pound gross trailer weight. Besides installing a hitch are there any other options that i have to raise or lower the hitch ball? Ive seen these smaller...
  2. J

    Two bicycles approach one another, each traveling with a speed of 8.50 m/s?

    (a) If bicycle A, beeps a 315 hz horn, what frequency is heard by bicyclist b? Which of the following would cause the greater increase in the frequency heard by bicyclist b: 1. bicycle a speeds up by 1.50 m/s or 2. bicyclist b speeds up by 1.50 m/s ? Explain
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