4. Calculate the speed and acceleration due to rotation of the Earth of a person in Seattle (latitude 48 N). Then calculate the speed and acceleration due to the Earth's orbit around the Sun. What information do you need to be able to solve these problems? What assumptions do you have to make? Give specific answers. 5. A satellite orbits the Earth in an essentially circular orbit. Its altitude is 640 km, and it makes one revolution every 98 min. What is its speed and acceleration? 6. A boat travels upstream at 14 km/h relative to the water's current. The water in the river flows at 9 km/h. a. What is the boat's velocity relative to the ground? b. If a person on the boat is walking from front to rear at 6 km/h, what is the persons velocity relative to the ground