The angular momentum is conserved in this scenario because there are no external torques acting on the system. When the skater pulls her arms in, she decreases her moment of inertia, causing her angular velocity to increase in order to conserve angular momentum. This is a result of the principle of conservation of angular momentum, which states that the total angular momentum of a system remains constant if no external torques are acting on it. Therefore, in the absence of external torques, the skater's angular momentum is conserved as she pulls her arms in. **

To conserve the battery of the iPhone 13, you can start by adjusting the screen brightness to a lower level and enabling the "Auto-Brightness" feature. Additionally, you can disable unnecessary background app refresh and location services for apps that don't require them. Using Wi-Fi instead of cellular data, enabling low power mode, and managing notifications can also help conserve battery life. Lastly, keeping your iPhone updated with the latest software can optimize battery performance. **

No, the energy of the air is not conserved when a ball falls through the air to the ground. As the ball falls, it loses potential energy due to gravity, which is converted into kinetic energy. Additionally, some of the energy is lost to air resistance in the form of heat and sound. Therefore, the total energy of the system (ball and air) is not conserved during this process. **

No, Google Maps Navigation is not broken. It is a widely used and reliable navigation tool that provides accurate directions and real-time traffic information to help users reach their destinations efficiently. However, like any technology, there may be occasional glitches or inaccuracies, but overall, Google Maps Navigation is a highly functional and valuable tool for users. **

Google Maps Navigation does require an internet connection to provide real-time navigation and directions. However, Google Maps does offer a feature called offline maps, which allows users to download maps of specific areas for offline use. While offline maps can provide basic navigation like route planning and viewing saved locations, real-time traffic updates and turn-by-turn directions will not be available without an internet connection. **

The navigation route planner is sorted sensibly, as it takes into account factors such as distance, traffic conditions, and estimated travel time to provide the most efficient route. It also considers user preferences and real-time data to offer alternative routes in case of road closures or heavy congestion. Overall, the navigation route planner is designed to prioritize the quickest and most convenient route for the user's journey. **

Google Maps may sometimes suggest a strange route due to various factors such as traffic congestion, road closures, or construction. Additionally, the algorithm used by Google Maps may prioritize the fastest route based on real-time data, which could lead to unconventional routes. It is always a good idea to double-check the suggested route and use your own judgment when following directions from any mapping application. **

To activate navigation on Maps, first open the Maps app on your device. Then, enter your desired destination in the search bar. Once the destination is selected, tap on the "Directions" button. Finally, choose your preferred mode of transportation (car, walking, public transit) and tap on "Start" to begin the navigation. **