8. What is the momentum of an object with a mass of 1750 kg and a velocity of 15 m/s? 9. A car is moving with a velocity of 20 m/s. If it has a momentum of 21,50 kg.m/s, then what is its mass? 10. An object has a mass of 1900 kg. If its momentum is 18,000 kg.m/s, then how fast is it moving? Define/ Explain (equations): Momentum; velocity; mass; kinetic energy; potential energy; total potential energy; elastic collision; inelastic collision; waves; parts of waves; frequency; amplitude; pitch 1 1. If the velocity of an object increases, then what happens to its momentum? 12. What is the amplitude, wavelength and frequency of the wave shown? 10 (cm) 10 -15 Time (s)