Mistral Nemo

The hardest naturally occurring substance on Earth is diamond. Here are a few reasons why: 1. **Structure**: Diamonds are made of carbon atoms arranged in a crystal structure called diamond cubic. This structure is incredibly dense and strong, with each carbon atom bonded to four other carbon atoms in a tetrahedral arrangement. 2. **Bonding**: The bonds between carbon atoms in a diamond are covalent bonds, which are among the strongest types of chemical bonds. These bonds are short, strong, and directional, making diamonds very hard. 3. **Hardness**: On the Mohs scale of mineral hardness, which ranges from 1 (talc) to 10 (diamond), diamonds are a 10. This means they can scratch any other mineral, but cannot be scratched by any other mineral. Other very hard substances include: - **Moissanite**: This is a silicon carbide mineral that is almost as hard as diamond, with a Mohs hardness of 9.25. - **Boron Nitride**: This is a very hard material that comes in two forms, hexagonal boron nitride (hBN) and cubic boron nitride (cBN). The latter is second only to diamond in hardness. - **Corundum**: This is a form of aluminum oxide that includes rubies and sapphires. It has a Mohs hardness of 9.

The capital of Australia is Canberra. It was selected as the capital in 1908 as a compromise between rivals Sydney and Melbourne, and construction began in 1913. Canberra is known for its wide boulevards, parks, and landmarks such as Parliament House and the Australian War Memorial. It's located in the Australian Capital Territory (ACT), which is not part of any of Australia's states.

10000Watts

First, let's calculate the new value of the house after the repairs. The value increased by 150%, which means the increase is 1.5 times the original value of the house. Original value of the house: $80,000 Increase in value: 1.5 * $80,000 = $120,000 Now, let's add the increase to the original value to find the new value of the house: New value of the house: $80,000 + $120,000 = $200,000 Next, we need to calculate the total cost Josh incurred, including the purchase price and the repair costs: Total cost: $80,000 (purchase price) + $50,000 (repairs) = $130,000 Finally, let's calculate the profit by subtracting the total cost from the new value of the house: Profit: $200,000 (new value) - $130,000 (total cost) = $70,000 Josh made a profit of $70,000 on the house flip.

18

Janet's ducks lay 16 eggs per day. She eats 3 for breakfast and uses 4 to bake muffins, so she uses a total of 3 + 4 = 7 eggs for these purposes. The remainder of the eggs that she sells at the farmers' market is 16 - 7 = 9 eggs. She sells each egg for $2, so the total amount she makes from selling the eggs at the farmers' market is 9 eggs * $2/egg = $18. Therefore, Janet makes $18 every day at the farmers' market.

The capital of Australia is Canberra. It was selected as the capital in 1908 as a compromise between rivals Sydney and Melbourne, and construction began in 1913. Canberra is known for its wide boulevards, parks, and landmarks such as Parliament House and the Australian War Memorial. It's located in the Australian Capital Territory (ACT), which is not part of any of Australia's states.

Walk

First, let's calculate the total cost of the boxes Sam bought: He bought a dozen boxes, which is 12 boxes, and each box costs $10. So, the total cost is 12 boxes * $10/box = $120. Next, let's calculate the total number of pens Sam has: He has 12 boxes, and each box contains 30 pens. So, the total number of pens is 12 boxes * 30 pens/box = 360 pens. Now, let's calculate how many packs of 6 pens Sam can make: He has 360 pens, and each pack contains 6 pens. So, the number of packs is 360 pens / 6 pens/pack = 60 packs. Next, let's calculate the total revenue from selling the packs: He sells each pack for $5, and he has 60 packs. So, the total revenue is 60 packs * $5/pack = $300. Finally, let's calculate the profit: Profit = Total Revenue - Total Cost Profit = $300 - $120 = $180 Sam made a total profit of $180.

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