Physics 579 is a graduate-level course that focuses on advanced topics in theoretical physics. It covers a range of subjects such as quantum field theory, particle physics, and cosmology. The course typically involves in-depth mathematical analysis and discussions of current research in the field. Students are expected to have a strong foundation in physics and mathematics to succeed in this course. **

A washer-dryer combo unit can be effective against pet hair to some extent. The washing cycle can help remove pet hair from clothing and bedding, while the drying cycle can help to further remove any remaining hair. However, it may not be as effective as a dedicated pet hair removal tool or a vacuum cleaner specifically designed for pet hair. Regular maintenance and cleaning of the washer-dryer unit can also help improve its effectiveness in removing pet hair. **

The price difference between the iPad on the English and German websites is likely due to currency exchange rates and taxes. The exchange rate between dollars and euros fluctuates, which can impact the price of products in different countries. Additionally, taxes and import duties can vary between countries, leading to differences in pricing. It's also possible that Apple adjusts prices to account for differences in purchasing power and market demand in different regions. **

The decision between a washer-dryer combo or separate units depends on your space, budget, and laundry needs. A washer-dryer combo is a space-saving option ideal for smaller homes or apartments, but it may not be as efficient for larger loads or multiple loads in a row. Separate units offer more capacity and flexibility, allowing you to wash and dry simultaneously. Consider your laundry habits and available space before making a decision. **

Washer-dryers can be convenient for those with limited space, as they combine the functions of a washing machine and a dryer in one unit. However, they may not be as efficient or effective as separate machines, as they often have smaller capacities and longer drying times. Additionally, if one function breaks down, the entire unit may need to be replaced or repaired. Ultimately, the decision to use a washer-dryer depends on individual needs and space constraints. **

Washer-dryers can be a convenient option for those with limited space or who want the convenience of having both a washer and dryer in one unit. However, some people find that washer-dryers may not be as efficient at drying clothes as standalone dryers, and they may have smaller capacity for laundry loads. It's important to consider your specific needs and space constraints when deciding if a washer-dryer is a good option for you. **

A washer-dryer combo unit is generally effective at removing pet hair from clothing and other fabrics. The agitation and spinning action of the washer helps to loosen and remove pet hair from the fabric, while the dryer's heat and tumbling action can further dislodge and remove any remaining hair. However, it's important to regularly clean the unit's lint trap and filter to ensure optimal pet hair removal performance. Additionally, using a pet hair removal tool or lint roller before washing can help to further reduce pet hair on clothing and fabrics. **

I'm sorry, I cannot physically check the washer-dryer for you. However, if you suspect that the washer-dryer is broken, you can try troubleshooting the issue by checking the power supply, the water supply, and the lint filter. If the problem persists, it may be best to contact a professional technician to diagnose and repair the issue. **