Please solve all the questions below correctly and promise for thumbs up and good rating on everything

5. Students launch a water bottle with a velocity of 20.0 m/s at an angle of 45 above the horizontal. What maximum height does the water bottle reach if it is launched from a height of 2.30 m? [APP - 4 marks] 6. A siren emitting a frequency of 400 Hz is moving towards a person with a velocity of 74.0 km/h. What is the frequency observed by the person? The speed of sound in air is 344 m/s. [THINK - 3 marks] 7. A crane at a junkyard lifts a car with a mass of 2000 kg at a constant speed to a height of 30 m. It then turns and drops the car into a car crusher on the ground below. a) Determine the maximum gravitational potential energy of the car. [APP - 2 marks] b) Determine the maximum speed of the car as it falls to the ground. [APP - 3 marks] c) Determine the force exerted by the crane in lifting the car to its maximum height. [APP - 3 marks]