Problem: Article: There are 4 types of commodities that you can buy. These are metals, energy, livestock, and agricultural products.  Metals are traditionally considered to be a safe investment, especially during regressions and volatile markets.  Metals include gold, silver, aluminum, copper, and platinum. Energy can be very profitable, but there are many political and economic factors that can affect its potential return. Energy includes oil and natural gas. Livestock and agricultural products are easy to buy and sell. Population growth might increase the value of agricultural products, but these investments suffer during the summer months or after natural disasters. Metal is the easiest for investors to buy physically, as you can keep coins, jewelry, and bars in a bank or home safe. If you have a farm, livestock or agricultural products may be another physical asset that you can buy and store. Energy tends to be something you cannot buy physically. The easiest way to invest commodities is to buy stock in companies that produce commodities. You will need to hire a broker if you would like to invest. Put in an order for shares of a company's stock. For example, if you want to invest in natural gas, you might put in an order to buy shares in PetroHawk Energy Corporation (HK), Stone Energy Corporation (SGY), or SandRidge Energy (SD). These firms all specialize in natural gas. An ETF is a fund that specializes in a type of investment. ETFs tend to specialize in one commodity, such as oil or metal. The ETF will buy a wide range of shares from different companies in the industry. An ETF is useful because it will diversify your investment for you. That said, they are as risky as the stock market is. To invest in an ETF, visit a stockbroker. You can also use online brokers. Put in an order for ETF shares the same way you would for stock.
Summary: Choose which type of commodity you want to buy. Purchase the physical commodity if you have storage for it. Buy shares in companies if you can't store the commodity. Invest in an exchange-traded fund (ETF).

Problem: Article: In order to solve any physics problem you must know which equation to use. Writing down all of the known information is the first step to finding the right equation. If you have values for the final velocity, acceleration, and time involved, you can use the following equation:  Initial velocity: Vi = Vf - (a * t)  Understand what each symbol stands for.   Vi stands for “initial velocity”  Vf stands for “final velocity”  a stands for “acceleration”  t stands for “time”   Note that this equation is the standard equation used when finding initial velocity. Once you have written the known information and determined the proper equation, you can fill in values for the appropriate variables. Carefully setting up each problem and writing out every step of the process is important. If you make a mistake, you can easily find it by looking back at all of your previous steps. With all of the numbers in place, use the proper order of operations to finish the problem. If you’re allowed, use a calculator to limit the number of simple math mistakes.  For example: An object accelerating east at 10 meters (32.8 ft) per second squared traveled for 12 seconds reaching a final velocity of 200 meters (656.2 ft) per second. Find the initial velocity of that object.  Write the known information:  Vi = ?, Vf = 200 m/s, a = 10 m/s2, t = 12 s   Multiply the acceleration and time. a * t = 10 * 12 =120 Subtract the product from the final velocity. Vi = Vf – (a * t) = 200 – 120 = 80 Vi = 80 m/s east Write your answer correctly. Include a unit of measurement, usually meters per second or m/s, as well as a direction the object was traveling in. Without providing information about the direction, you only have a measurement of speed rather than velocity.
Summary: Know the right equation to use. Fill in the known information. Solve the equation.

Problem: Article: If you’re in love with someone, you’ll likely long for them whenever they’re away from you. You may even miss them when they’re only away for a short time. Look for feelings of wanting to be with them every moment. This could be a sign you’re in love.  For example, you might catch yourself thinking, “I miss him,” even though he just left. Similarly, you might find yourself cuddling a pillow and imagining it’s the person you love. You may fall in love with someone who doesn't feel the same way. This can be very disappointing and hurtful, but it's best to let yourself move on. Everyone has a right to their feelings, so don't try to make them love you. Instead, get over them by sharing your feelings, grieving the loss of your fantasy, and moving on with your life. Don't wait for someone to change their mind and start loving you. Remember, a better match for you may be out there waiting for you to find them. If you continue pursuing a person who doesn't return your feelings, you're likely becoming obsessed with them. This is harmful to both you and them. Respect their choices and search for love with someone else.
Summary:
Notice if you feel a longing for someone. Pursue your love only if the feeling is mutual.