Yes, the square root of 9 is a whole number. The square root of 9 is 3, and 3 is a whole number because it is an integer and not a fraction or decimal. In fact, the square root of any perfect square (such as 4, 9, 16, etc.) will always be a whole number. **

Yes, you can convert your photos to 16:9 format with your Canon EOS 1100D. The camera has a feature that allows you to change the aspect ratio of your photos, including the option to set it to 16:9. You can access this feature through the camera's menu and select the desired aspect ratio before taking the photo. Additionally, you can also use photo editing software to crop and resize your photos to the 16:9 format after they have been taken. **

The whole earth becoming nonviolent is a challenging but not impossible goal. It would require a shift in societal values, education, and governance towards peaceful conflict resolution and empathy. It would also require addressing systemic issues such as poverty, inequality, and discrimination. While achieving a completely nonviolent world may be difficult, progress can be made through individual and collective efforts to promote peace and justice. **

The search for Planet 9 is not necessarily hopeless, but it is challenging. The potential existence of Planet 9 is based on indirect evidence, such as the unusual orbits of distant objects in the solar system. However, actually finding and confirming the existence of Planet 9 would require extensive and precise observations, as well as advanced technology. While the search may be difficult, it is not necessarily hopeless, and advancements in telescopes and observational techniques may eventually lead to the discovery of Planet 9. **

No, it is highly unlikely that Whitebeard could destroy the whole world. While he was an incredibly powerful and formidable pirate with the ability to cause massive destruction, the world itself is far too vast and resilient to be destroyed by any single individual, even one as powerful as Whitebejsonard. Additionally, the world of One Piece is filled with numerous other powerful individuals, organizations, and forces that would likely prevent such a catastrophic event from occurring. **

For your Canon EOS 1100D, you can consider the Canon EF-S 10-18mm f/4.5-5.6 IS STM lens. This lens offers a wide-angle perspective and is specifically designed for APS-C cameras like the EOS 1100D. Another option is the Canon EF-S 24mm f/2.8 STM lens, which is a compact and lightweight wide-angle prime lens that is compatible with your camera. Both of these lenses are great choices for capturing landscapes, architecture, and group shots with your Canon EOS 1100D. **

The Canon EOS 7D is a crop sensor camera, so a wide-angle lens suitable for this camera would be one with a focal length of around 10-22mm to achieve a wide field of view. One popular option is the Canon EF-S 10-22mm f/3.5-4.5 USM lens, which is specifically designed for crop sensor cameras like the EOS 7D. This lens provides a wide-angle perspective and is well-suited for landscape, architecture, and interior photography. **

The VW Eos is a compact convertible produced by Volkswagen from 2006 to 2015. It was available in a variety of trim levels, including the base Komfort, the mid-level Lux, and the top-of-the-line Executive. The Eos was known for its retractable hardtop roof, which provided the convenience of a coupe with the option to enjoy open-air driving. Overall, the VW Eos offered a stylish and versatile convertible option for drivers looking for a fun and practical vehicle. **