Find the final velocity of a skateboarder that gets on a skateboard with a running start with the following information: - Skateboarder's mass: 56.3 kg
- Runner's velocity: 4.6 m/s
- Skateboard's mass: 5 kg
- Skateboard's initial velocity: 0 m/s

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In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.