Problem: Article: A free body diagram is a quick sketch of an object that illustrates all of the forces acting on it and the direction these forces are acting. Read through the problem and draw a simple sketch of the object in question and the arrows representing every force acting on that object. For example: Calculate the net force of an object weighing 20 N sitting on a table being pushed towards the right with 5 N of force, but staying still because of a friction force of 5 N. The standard is to set arrows pointing upward or to the right as positive and arrows pointing downward or to the left as negative. Remember, you can have multiple forces working in the same direction. Forces that oppose each other will always have opposite signs (one positive, one negative). If you are working with multiple force diagrams, make sure you keep the directions consistent throughout. Label the magnitude of each force with a "+" or "-" sign based on the direction of the arrow you've drawn on the force diagram. For example: The force of gravity is a downward force making it negative. The normal force is upward making it positive. The push force is to the right making it positive, while the friction force acts to oppose this force towards the left (negative). Be sure to label all of the forces that are acting on the object. When an object is resting on a surface there is a downward force of gravity (Fg) and an equal force in the opposite direction called the normal force (Fn). In addition to these two forces, label the rest of the forces stated in the problem. Write the magnitude of each force in Newtons next to the given label. A standard way to label forces is with a capital F and a subscript of first letter of the force. For example, if there is a force due to friction, label it Ff. Force due to gravity: Fg = -20 N Normal force: Fn = +20 N Friction force: Ff = -5 N Push force: Fp = +5 N Now that you have labelled all forces with both a direction and magnitude, you just need to add all of them together. Write an equation for net force (Fnet) where Fnet is equal to the sum of all the forces acting on the object. For example: Fnet = Fg + Fn + Ff + Fp = -20 + 20 -5 + 5 = 0 N. Because the net force is 0 N, the object is stationary.
Summary: Draw a free body diagram. Establish the positive and negative directions of forces. Label all forces. Sum the magnitudes of all the forces.

Problem: Article: 93% of all communication is nonverbal. This is broken down to their tone of voice, face, body, and finally their words. Men and women share some forms of body language, but also have specific subconscious signals they'll give off if they like you. Women are capable of over fifty signals conveyed through body language. While not all of these will be able to be detected, there are a few recognizable quirks you can find. Some of the bigger indicators to look for on a date or in conversation is: She'll pull up her sleeves and expose her wrist. This is a good signal, and most women are unaware that they do this. This exposes one of the more tender and sensitive parts of the body. She will try to close the distance between you in some way. This can be done in many ways like moving her drink or a menu closer to you. She'll find a way to touch you. Some women will do this smoothly. For example, she says "come here" and she'll show you an app on her phone. Then when you're near your bodies may touch. Men are less equipped with a range in body language. One signal to watch out for is when the guy pushes his shoulders back and directs his breath to his chest. Another strange one is when a guy puts his fingers through his belt loops like a cowboy. Eye contact is the universal body language clue that can communicate so much. Both men and women will use eye contact when they like someone. Try not to hold contact for too long, or else you might ruin the mystique around it. The biggest give away is if they look at you and you both hold eye contact for a moment and suddenly look away.
Summary: Understand body language. Detect a woman's signals. Detect a man's signals. Watch for eye contact.

Problem: Article: Make sure to stand in natural light and wear white clothes when determining your skin tone. Colored clothing may reflect artificial light which can affect how you see your skin color. Use a mirror to determine the surface color of your skin. Surface color skin tones are fair, light, medium, or dark. Fair skin tones are light and burn easily. Light skin tones are also fair but have more beige and yellow undertones than fair skin. Medium skin tones are darker and have olive undertones and usually have green, warm brown, or hazel eyes. Dark skin tones are deep and rich. Those with dark skin tones typically have dark brown eyes. Your surface skin tone may change depending on the season or how much time you spend in the sun. Unlike surface skin tone, undertones remain constant regardless of skin conditions like rosacea and acne. To determine your undertone, look at the color of your veins in your wrist. If your veins appear blue or purple, you have a cool undertone. If they appear greener, then you are warm-toned. Neural toned people will have blue-green veins. Many people from African or Indian who have an easy time tanning have warm undertones. If you get red, flush easily, or burn when tanning, you most likely have a cool skin undertone. The color of your eyes also contributes to your overall tone. Those with golden brown, green, and blue eyes are normally warm-toned. Additionally, those with gold specs in their eyes commonly have warm undertones. Those with black or deep, steel blue, or hazel with gray or blue flecks have cool undertones. Keep your eyes in mind when considering your hair color. Light blue or gray eyes look good with light blonde hair. Darker toned people look good in dark brown or mocha hair. If you aren't looking to make a fashion statement or have people notice you, then you may want to pick a color that compliments your tone. Doing this will allow your dye to look natural and attractive. Those with a cool tone look good in colors like wheat blond, walnut brown, tawny blond, golden caramel, or copper. Those with a medium tone look good in gold, honey, auburn, cinnamon, ebony brown or mocha. Chocolate brown, mahogany, toffee, or other warm and rich colors are best for people with darker complexion.
Summary:
Look at the color of your jawline. Determine your skin's undertone. Think about the color of your eyes. Pick a hair color that compliments your tone.