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 (32.8ft) per second squared traveled for 12 seconds reaching a final velocity of 200 meters (656.2ft) 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.

. Semi-formal attire can be confusing, since these days it generally means formal. Basically think of full formal as being ball gowns and your nicest tux (with cuff links!). Semi-formal, then, becomes cocktail dresses and suits with colorful button down shirts (tie optional). . It's business...but it's casual? Seems like it would be a huge contradiction, right? It's not as complex as it sounds. Generally, you take one half of your outfit and make it more casual, while maintaining business attire on the other. For example, jeans, formal shoes, a button down shirt (no tie), and suit jacket. Another example would be wearing formal pants and shoes but a more party-friendly blouse (as long as it's not revealing). . Of course, dressing for a party is a bit complicated. It really depends on what kind of party it is! Know ahead of time whether it's a costume or not. Beyond that, always err on the side of too-formal. Dressing slightly nicer than what you expect everyone else will be dressed as. If you're over-dressed, just say that you so rarely get an excuse to dress nice, you wanted to take the chance. . You can probably guess that it would be in bad form to dress in all black for a wedding, unless you're one of the guys putting on a tux....but beyond that, you're clueless. The best advice is to dress semi-formal and in pastel, happy colors. Woman should avoid going to bright and should never wear mostly white, as this is seen as trying to draw attention away from the bride. . Dressing like a pro for an interview is one of the most important things you can do to land a job. But how exactly do you dress? Like with a party, it's a good idea to dress just a little bit nicer than is maybe necessary. Dress not like how you would expect to dress in that position, but rather dress how you would expect to if you were going to have your new boss' job.

Summary: Get help dressing semi-formal Get help dressing business casual Dress for a party Learn how to dress for a wedding Get help dressing for an interview

Scarlet fever is most likely to affect children between the ages of 5 and 15. When someone within that age range develops symptoms of scarlet fever, you should be particularly cautious and take him or her to the doctor as soon as possible. If your child already suffers from an infection or any other disease that will weaken his or her immune system, he or she will be prone to bacterial infections like scarlet fever. The bacteria that causes scarlet fever lives in the nose and throat and is communicated by contact with liquids spread through coughing and sneezing. If you or your child touch something that someone has coughed or sneezed on, you are susceptible to contracting the disease that causes scarlet fever. This will is most likely to occur in crowded areas. Because young children are most susceptible to the disease, schools are a particularly common place to contract the disease. Your child should wash his or her hands frequently and refrain from sharing utensils, linens, towels, or other personal items with people. Individuals can be contagious even after they have ceased to be symptomatic. Anyone diagnosed with scarlet fever should stay home for at least 24 hours after beginning treatment with antibiotics.
Summary: Be careful with children. Be mindful if your child has a weakened immune system. Be careful in crowded environments. Ensure that precautions are taken to limit the spread of the infection.